Why emerald engagement rings
Why choose an emerald engagement ring
Are emeralds good for engagement rings?
Emerald engagement rings easily withstand a competition with diamond jewelry. An emerald ring looks luxurious, bold and definitely offbeat. In terms of popularity, emerald is indeed inferior to diamond. However, if you, for instance, take a closer look at what sort of rings princesses or royal brides received as a symbol of engagement, you will notice a curious fact: there are very few diamond rings among them.
Emerald has been very popular among royalty since the ancient times. According to historical sources, green gemstones adorned the collections of many monarchs and country leaders, and not just adorned, but also were considered the most valuable of all. Among the most famous and loyal fans of green beryl were Cleopatra, the Queen of the Ptolemaic Kingdom, Queen of Sheba, and the Roman Emperor Nero.
Emerald rings at all times have been an indicator of luxury, wealth, power, authority, and beauty.
It is no wonder, because this precious mineral has a unique charm that will undeniably accentuate the aristocracy and exquisite taste of its owner. In addition, the variety of shades allows for an emerald ring selection for people with each an every type of appearance, eye color, and skin tone.
Our ancestors believed in magical properties of gemstones, and based on legends that survived to our days, emerald safeguards motherhood and strengthens marital ties. Perhaps, it was among the reasons for naming the 55th wedding anniversary - an “emerald wedding” - after the stone intended to reinforce and sustain the feelings of spouses for many years.
What is this stone?
In a nutshell, emerald can be described as a green mineral that belongs to igneous rocks. This gemstone is the most valuable variety of the beryl mineral group.
Earlier, all green-colored minerals used to be called emeralds, but later, experts designated this name to a particular mineral, and jewelers consequently ranked the emerald as the first class of precious stones. Green beryl is quite a rare, and therefore a very valuable discovery, and ideal specimens in terms of purity and shade are justly regarded unique. The majority of natural emeralds usually have a considerable amount of imperfections. Therefore, virtually all mined gemstones are treated with special oils or polymers to make the cracks in the stone structure less noticeable. In addition, the defects can be repaired with vacuum chambers.
Emerald deposits can be found all around the world, but the richest of them are in Colombia, Brazil, Zimbabwe, Russia, France, India, and the United States. Each deposit has a particular ‘profile’ of impurities and inclusions, which allows the specialists to accurately determine the origin of each mineral.
Is emerald durable?
Yes, emerald is rightfully considered a durable stone.
Judge for yourself:
Emerald has a hardness of 7 to 8 on the Mohs scale, which is only a couple of units lower than hardness of diamond. For a more illustrative comparison, for instance, you could try to break a nail (fastener). I am sure you will have to put a lot of effort into this, even though the toughness of an ordinary nail on the Moss scale is only 5 units.
Another prominent advantage of emerald that is worth mentioning is their excellent resistance to various reagents, including acids. The stone can be adversely affected only by ambient temperature exceeding 700°C, in which case the stone simply loses its marvelous color. (Although, I suspect that as a result of such influence, the owner of the emerald ring, or rather what remains of them, will have a much more pitiful appearance than the mineral that turned “pale” :)
The density of emerald, as well as its hardness, directly depends on the location of mineral deposits. For instance, Colombian emeralds have a density of about 2.72 g/cm3, Brazilian ones – 2.67 g/cm3, and gemstones from the southern coast of Africa – 2.77 g/cm3.
The discrepancy in figures is due to the presence of impurities of various metals and their amount in the structure of the mineral. For example, the more rubidium and cesium an emerald contains, the higher is its density. Moreover, many geologists claim that the hardness of a gemstone can increase over time.
Nevertheless, natural emeralds require a more careful treatment than, let’s say, diamonds, sapphires or rubies. The mentioned gemstones, as well as jewelry containing them, should not be stored in the same container as emeralds, since the minerals with higher hardness might leave scratches on the surface of an emerald, and in case of a long-term storage, they may cause the stone to completely lose its original shine. In addition, despite the fact that such a problem can be easily solved by contacting a jeweler who will polish your gemstone and restore the former appearance of the item, anyhow it is better to store the jewelry in separate cases. Moreover, the emerald, like essentially all stones, dreads the effects of strong heat and bright sunlight. When exposed to ultraviolet light for long periods of time, colored stones may fade and lose their brightness - it is an additional argument in favor of using a case ;)
Are emeralds cheaper than diamonds?
If you consider diamond to be the most expensive gemstone in the world, you could not be more wrong.
For their beauty, popularity, and hence their value, emeralds occupy a leading position among the first-class gemstones. Although the price range for emeralds is very broad, this mineral is the most expensive gem in the world in terms of the maximum price per carat. Hence, a clear and bright natural emerald often has a much higher price than a diamond.
How much does a 1-carat emerald cost?
It is simply impossible to give an explicit answer to this question.
As mentioned before, there is quite a wide price range for emeralds: starting from several tens of dollars to many thousands, and even tens of thousands of dollars per carat. The price of a particular stone is comprised of many factors. The major ones are the following: color, brightness, clarity (purity), and quality of cut. Hence, the prices will differ depending on how greatly the stones differ by the mentioned parameters.
How are emeralds appraised?
While clarity is the main priority for other stones, evaluation of emeralds is following a slightly different approach.
The determining factors for the price of an emerald are most often its color, brightness, and quality of cut and polish (the latter ones improve the overall characteristics of the emerald, emphasizing the stone’s beauty and sheen). The brighter and more intense the color of an emerald, the higher its value. Moreover, unlike diamonds, a saturated bright emerald will not diminish in price even if it contains inclusions. (Besides, unlike other precious stones, the clarity parameter of an emerald is determined without using a magnifying glass. A specialist assesses the transparency of a stone with the naked eye.)
Good-quality natural emeralds that weigh more than two carats are exceedingly rare, and therefore can be quite expensive. A large emerald of saturated green color with blue hues and minimal inclusions may cost tens of hundreds of dollars per carat.
Color is certainly the main asset of an emerald. Therefore, accurate identification of color, saturation, and hue plays a significant role in evaluating the gemstone.
To determine the color of an emerald, the stone is compared with the reference standards, exclusively in a particular lighting. During the assessment process, they generally use fluorescent lamps of 30-40W or natural light, but without direct sunlight.
In terms of color, emeralds are conventionally classified into five groups: the first group contains dark green emeralds, the second group – normal green, the third one is for medium green, the fourth is light green, and finally, the fifth group is for emeralds that are very light, with a greenish tint.
In addition, the price depends on the weight of the gemstone in carats, the degree of refinement, and the number of imperfections in the stone.
Emeralds that have been cut are generally divided into three groups, depending on their quality and purity: the first group includes pure emeralds with minor defects in the form of cracks, inclusions in the form of dots or strips in different parts of the stone; the second group is for emeralds with minor imperfections, such as cracks and strips combined with dot-like inclusions of other minerals, which form concentrations and web-like structures in certain parts of the emerald; finally, the third group contains the stones with defects including cracks, strips and dot-like inclusions of other minerals that are located throughout the stone, as well as emeralds with clouded areas, where certain parts have partially lost their luster and play of light and color.
Gemstones with large defects or extensive inclusions that prevent the emerald from reflecting light are transformed into smooth ovals without facets - cabochons.
Cabochons, in turn, can be divided into two groups.
The first one is for cabochon emeralds with imperfections in the form of cracks, stripes, inclusions, or clouded areas in different parts of the stone. They are transparent and translucent, characterized by shine and play. The second group are cabochons with significant imperfections, such as dense webs of cracks, strips, and inclusions, with zones of turbidity throughout the stone. These stones are translucent and opaque; also, they have partially lost their shine and play.
Certainly, if the emerald has through cracks or other damage that can destroy it, it is simply discarded. Such emeralds are not even used for cabochoning.
How much is an emerald engagement ring?
Prices for emerald engagement rings may vary widely, depending on the quality and size of the center stone, the complexity of work, and the materials used for making the jewelry piece.
What makes up the cost of the ring?
In a nutshell, the main appraisal criteria are the cost of materials used in manufacturing of a particular item and thework of a jeweler.
In case you have decided to purchase a ring in an offline store, the margin of the store will be added, apart from the factors mentioned above.
To make the matter easier to comprehend, we will try to deconstruct it in more detail.
So, as it has been said, the price of any jewelry piece, which in our case is an engagement ring, is shaped based on the cost of the materials used for making this ring and the work of a jeweler (or, occasionally, of several craftsmen).
Cost of materials usually includes:
(ring band) directly affects the final price. The cost of the precious metal itself depends on its availability, rarity, mining-related expenditures, and the state of the global economy.
The size of the ring affects the weight of the metal that goes into its manufacture, and hence, the final cost.
- Cost of jewelry incrustation (gemstones)
Leaving aside whether the gemstone is certified or not, whether it is a single stone or a large emerald surrounded by small ones, each element has its individual price. Moreover, this cost is constantly changing. It is affected by the market price, which, in turn, is shaped by the volume of supply and the rarity of the stone.
Cost of work entails an even greater number of indicators.
The modern full cycle of jewelry manufacturing includes designing a sketch, building a digital model, creating a wax mold, casting a prototype from metal, processing and assembling the final product, setting the gemstones, and polishing. Moreover, one should not forget that manual labor has always been valued higher, mainly because items created straight with the jeweler’s hands are more artistic and are certainly exclusive, since they are much more challenging to reproduce. A jewelry piece is considered ‘hand made’ if the master carved out the wax mold with their own hands, without a preliminary modeling using a dedicated graphic program and without using a milling machine or a 3D printer.
Hence, the overall ring creation process from start to finish implies hours and hours of human labor. This factor has quite a substantial effect on forming the final price of the item. Any kind of jewelry-making work requires highly qualified and experienced jewelers, with the skills they have been building up over the years. There is no universal machine that would simply create “off-the-peg” readily available rings. Jewelry is the product of hard work, honed skill, and attention to detail.
(Apart from the abovementioned, one should also consider the uniqueness of a piece, where the author’s very idea is fundamental for the consequent design and style of the final product.)
Perhaps, it makes sense to once again mention the “store margin”, which I spoke of before. After all, you might have been wondering:why, more often than not, is the price of an engagement ring on the Internet lower than the price of the same ring in a regular store? Well, the thing is it’s not just about the seller’s ambition to gain the maximum profit. The seller of a regular store often draws up the amount of the margin by laying down current costs: renting the premises of a store or an exhibition hall, salaries of the store employees, security services, taxes, etc. On top of that, add the cost of advertising, packaging, shipping, insurance, and sometimes a pretty impressive extra cost for the "name", and only then you get the final cost of the product.
Which emerald is the best?
Briefly, the perfect emerald is a transparent stone with evenly distributed saturated color. The main quality criterion for an emerald is its color, followed by transparency.
In case any questions came up during the selection process or you have any doubts, you can always contact our specialist with professional knowledge of the industry to grade a particular stone.
However, some aspects you can try to handle independently.
As mentioned earlier, there are some important features that you should pay attention to when selecting an emerald or a jewelry piece that contains it.
The main characteristics are color, clarity, quality of cut, and polishing.
The conclusive criteria of color depth are saturation and hue. On the one hand, if the stone has a grayish tint, it is regarded as marginally saturated, and has no particular value for jewelry industry, but is popular among collectors. On the other hand, jewelers consider dark minerals the most valuable, especially those with almost black hue, but such stones are extremely rare. Therefore, emeralds with saturation that provides them with a conventional green color are considered the most demanded.
The stones of dark green or medium green color are considered the most appealing, and therefore valuable. Such emeralds also are used as standard reference. They have a virtually pure spectral green color, occasionally with a slight bluish tint.
Emerald purity is defined as the minimum number of inclusions, such as rock residue, gas bubbles, or microcracks. In addition, even though this feature is secondary in the selection process for emeralds, it nevertheless affects the quality of the stone. If you are choosing between two emeralds with identical figures for density, size, and color, then your best bet is to choose the one with greater transparency and clarity. The value of the cloudy mineral is much lower.
Proper high-quality cutting and polishing of emeralds is a very complex and painstaking process that requires decent amount of professionalism from a jeweler (gem-cutter). Therefore, the more professional is the cut and polish, the better and more expensive is the emerald.
Colors and shades.
The main color of the emerald is green. The secondary shade only tints the stone; however, it is the shade that determines the consumer preference.
A high-quality emerald is allowed to have secondary hues of blue and yellow.
The secondary yellow shade makes the overall emerald color warm; blue hue shifts emerald into cold variety. Both of these shades complement the primary color of the emerald to a varying degree. It is the secondary shade that allows gemologists to determine the origin of the gemstone.
For instance, Zambian emeralds are known for their faint blue hue, almost indistinguishable, but giving a prominent "coldness" to the emerald. Colombian stones are “warmer”, with subtle yellowness in their coloration.
Speaking of shades of an emerald, one should remember the following: only a beryl with the dominant green color is an emerald. In the instance of yellow, red or blue color as dominant, the stone has no right to be called an emerald.
Popular cut shapes.
For emeralds, the jewellers tend to use a special cut, which is called the “emerald cut”. It has a shape of a rectangle and is used for stones of large size and very high clarity. Emerald cut protects even the most fragile gemstones against damage and chipping, while effectively revealing the stunning color of the stone.
Considering the fact that the cut plays quite a significant role in evaluation of an emerald, I suppose it is worth telling about the cut types in a little more detail.
Quite often, natural stones have various defects in the form of surface irregularities or vein-like structures; homogeneous emeralds are extremely rare. Hence, to give the gemstone an impeccable look, as well as to increase its resilience, emeralds are processed by cutting and polishing.
There are many forms of stone cuts, and each of them affects the stone’s appearance in its own way.
Oval cut is a type of round cut. It has specific faces characterized by large area and elongated shape, which makes the sheen and gleam of various hues more pronounced. Being in a part of the ring, such a stone visually lengthens and thickens the fingers.
Marquise. This type of cut got its name after Marquise de Pompadour, the mistress of King Louis XV. The shape reminds somewhat of a boat, but its origin is slightly different - this cut perpetuated the coquettish smile of the marquise. A ring with a stone of marquise shape also visually lengthens the fingers.
Pear cut. This type of stone processing combines both marquise and round cuts. Such a stone has one tapered end that must be secured in the frame. Just like all other cuts of this sort, pear cut visually lengthens the finger.
Princess cut. Like the round cut, the princess one conveys the play of light in a gemstone, while having a rectangle shape. The cut was created in the late sixties and has been very popular ever since. This type of processing allows the gem to lose less of its original weight and therefore cost slightly less. Princess cut is frequently used for rings, and in this case, the corners should be protected, since they are extremely fragile.
Asscher. It is a square variety of emerald, but with more tiers and faces. The Asscher brothers invented this cut, and the peak of its popularity falls on the 1930s. The number of faces may vary and depends on the weight of the gemstone.
Radiant.The stone resembles a hybrid of hexagon and square or rectangle shapes with trimmed corners. It has some characteristic features of princess and emerald cuts. Radiant cut is a great choice to show the transparency of the stone, the play of color, and gleam, but primarily for large-size stones. For the most part, it is used for men's jewelry (for instance, rings); this cut visually shortens the fingers.
Heart. The technique is similar to that of pear cut; such a gemstone performs well with the light. It is primarily used for romantic gifts. Abiding with the proportions is crucial; otherwise, the gemstone will be fragile.
Trilliant. This cut has a triangle shape with equal sides and sharp or smooth corners. It originates from Holland and is among the youngest cuts, compared to other types. The number of faces may differ, just like their shape, which may vary depending on the vision of the jeweler and the size of a particular stone.
Cabochon cut. This technology has been known since the ancient times. Back then, a chunk of a stone was cut off and shaped into a circle or an oval by polishing. Currently, this technique is also used for minerals that do not transmit light and for which transparency is of no particular importance. In this context, the bottom part of the gemstone can be either convex or flat. This method permits concealing the imperfections of the stone and emphasizing its assets. Cabochoning may also confer the needed shade to a stone. The concave lower part will brighten it up, while a stone polished into a double cabochon with a convex bottom becomes bright.
How to pinpoint a high-quality emerald?
The fundamental emerald quality indicators are:
While in nature it is nearly impossible to find a perfect emerald, the clarity indicator is critical in estimating the cost of a gemstone, although it is not the main criterion. The point is that the worth of a cloudy emerald is several times lower. For instance, among several emeralds, different in terms of size, color, and density, the one with the highest transparency will be the most valuable. One may also determine the clarity of a gemstone visually, this even does not demand using various magnifying tools.
Ring varieties (styles)
There are two main classifications of jewelry products by style. The first one is universally recognized in the art world - a categorization by historical eras. It is strictly professional and is used by jewelers, designers, fashion houses, and in some cases by jewelry experts. The second type is intended for customers.
Below, I will outline some of the most prominent and well-known styles from both classifications, along with some details that make each of the styles recognizable.
Directly after this style emerged in architecture, its features began to occur in jewelry items. They acquired such traits as contrast, massiveness and relief. When manufacturing an item in this style, ritual attributes are brought into play. In the patterns, one may see pentagrams, runes or magic symbols.
Distinctive traits of this jewelry style are openwork items, which are massive and elaborate, and large ornaments. Jewelry is created in bright, catchy colors. Rings with secrets and multi-tier bracelets were among the popular items.
This style is defined by lightness and asymmetry. Jewelry has all kinds of curls and ringlets, which are combined in an intricate way.
Pompousness of the former styles that eventually wearied people became the impetus for producing jewelry of a plain, reticent style. Jewelry obtained such features as sharp lines and geometric patterns, with the addition of a single stone. Although this style did not persist for a long time, it left a mark in the jewelry art, which inspired some modern jewelry with a classic design.
This design is known for the use of floral and plant ornaments, as well as silhouettes of birds and other wildlife. The jewelry is vivid, decorated with many different stones, however sophisticated and with smooth lines.
This style is identified by large elements and luxury that is quite well emphasized by the precious stones.
This style is characterized by the use of the most unusual forms, combination of materials, mixing of colors, and unusual cuts. Avant-garde jewelry is extraordinary and captivating.
The main features of high-tech, both in interior design and jewelry, are minimalism, creativeness, laconic expression, and high-quality processing of metal, often skipping the use of precious stones. Bold combinations of materials, just like in the avant-garde style, will surprise you.
This style has been common since the hippie movement and is famous for its simplicity and natural materials used in the manufacture of items. Jewelry is made of wood, silver and imitation stones. Such decorations have natural calm shades.
The name speaks for itself. Such items reflects the culture of various nationalities. Products are made using the materials, colors, and attributes traditional for a particular area.
This style is easily recognized due to the use of flora- and fauna-inspired elements in the design. Such jewelry is popular with the youth. The design of items may be quite moderate, but one can also quite often find collections with fun and cute pieces.
It is worth mentioning once again that the styles listed here are basic, and that there is a separate categorization within each of them. The selection process to find a perfect emerald engagement ring should be guided, first of all, by your own taste. However, please remember that jewelry pieces designed in different styles are much more difficult to nicely combine and integrate with each other.
Are emeralds a good investment?
According to researchers, emeralds have an excellent investment potential. Hence, the answer to the question is a definite “Yes. Emeralds can be a terrific investment”
Over the years, emerald mining costs have been getting higher and higher for the mining companies. Since a substantial portion of the deposits at shallow depths has been depleted, the manufacturers are forced to dig even deeper to extract the gems. Gemstone mining is getting increasingly expensive, and these costs directly influence the price of the stones. Moreover, emerald is an exceptionally fragile stone, which makes its extraction from great depth without damaging a rather difficult task.
As reported in the latest expert analysis, the price of emeralds will be increasing by 9.5% per year by 2020. This is almost 2% more than for diamonds.
In the same manner as all precious stones, emeralds are not sensitive to the effects of devaluation. Only the stone’s characteristics affect its price. Not a single crisis, economic fluctuation, technological or other political event will change the value of this gemstone. It follows only the rules of supply and demand.
Emerald’s price is shaped by its internal qualities, above all by its color, origin, weight, transparency and purity. A particular stone will have the same price everywhere; regardless of where it is being sold or what kind of currency is used - the price of an emerald will remain unchanged.
Emeralds are easily transported and stored.
The stones maintain their value and are passed down from generation to generation. According to expert assessments, 80% of emeralds purchased around the world are locked away as heritage and will not return to the market. This behavior contributes to a considerable degree to the shortages of emerald and increase of prices.
Since the early 2000s, the price of emeralds has escalated sharply, growing by more than 300%. Moreover, since, as I said, the production (supply) shows a declining trend, the demand is rising. Therefore, it is quite likely that the emerald prices are still at the development stage, and will continue to grow.
Is it possible to wear an emerald ring every day?
Yes, of course an emerald engagement ring can be worn both in everyday life and for especially festive occasions.
Such a ring will gracefully fit and complement virtually any chosen look or style. Emerald is a stunning, luminous and self-sufficient gemstone that requires no special emphasis. An emerald ring will look excellent when paired with a thin chain or bracelet; however, massive jewelry is better to be kept for another occasion.
An emerald engagement ring will flawlessly complement an elegant evening or cocktail dress, as well as a business suit. However, it would be smart to select clothes and jewelry in the same style: strict elegant clothes best accompany a classic ring design, but a modern emerald ring can adorn even the most daring outfits.
Are emerald engagement rings popular?
Emerald rings are among the most popular jewelry items in the jewelry catalogs. An emerald engagement ring confidently competes with diamonds.
It is quite obvious – just pay attention to celebrities. Many public figures, as well as members of the royal families favor emeralds.
If you look carefully at the rings that European princesses or women who married men from royal families received as a symbol of engagement, you will surely notice that there are very few diamond specimens among these rings. Primarily, this jewelry contains rubies, sapphires and emeralds.
Emeralds are rare and treasured gemstones, and therefore they will certainly make their owner stand out from the crowd. For this reason, the emerald has been considered a symbol of luxury and good taste for many centuries.
Who among celebrities has the most expensive emerald ring?
To celebrate their engagement, the 35th US President John Fitzgerald Kennedy presented the future first lady Jacqueline Kennedy with a ring that is estimated at about $ 1.5 million.
This exclusive jewelry item is perhaps one of the most beautiful engagement rings in history. A yellow gold ring with an emerald (2.84 carats) and a diamond (2.88 carats). Large baguette-cut gemstones are framed with the anchorage in the form of elegant diamond laurel twigs.
Kennedy decided to put an accent on originality, instead of giving his beloved one a traditional “bezel” with a large round diamond. Moreover, the future president of the United States knew about Jacqueline's affection for emeralds, and so he simply could not disappoint her.
Today, the emerald engagement ring that belonged to Jacqueline is stored at the John F. Kennedy Presidential Library and Museum in Boston.
What to look for when buying emeralds?
Rate the color of the stone.
The most valuable emeralds are the transparent crystals of bright green color of the cold palette (they are known by the name "grass-green")
Look out for the clarity of an emerald.
Various imperfections and defects are evidence of the natural origin of the mineral. Bubbles, internal cracks, scratches and scuffs often serve the proof of the stone’s authenticity.
Pure emeralds without inclusions are exceedingly rare, and their price is very high. The overwhelming majority of natural emeralds have at least one kind of inclusions. These can be gas, liquid or solid, and they are easily detectable when the stone is exposed to sunlight or placed under a lamp.
(One should be especially cautious here; after all, emeralds are often imitated with doublets (stones created by gluing several identical or different pieces into one). Occasionally, an artificial stone is glued on top of a natural one. It is particularly challenging to single out an doublet of ‘emerald on emerald’. In this case, the natural stone origin will be determined by the presence of inclusions and instrument readings. Additional obstacles are created by the use of green dye, which is added to the adhesive solution.)
A genuine emerald has well-defined edges that are clear and even, while a fake stone has a bit “softer” in shape facets.
Another important notion is that emeralds are often treated with oil (at times, containing green pigment). Oil fills the tiniest cracks on the surface and not just enhances the stone’s appearance, but also makes it less fragile. (Such a treatment can be easily exposed by a microscope examination of the mineral; moreover, the stone can be easily restored to its original shape by removing the oil through ultrasonic cleaning.)
However, any sort of ennoblement can substantially affect the price of an emerald. For instance, insignificant refinement reduces the cost of beryl by 20%, minor interventions - by 45%, moderate ones – by 55-60%, while the price of a mineral with significant improvements may lower by a threefold than that of a stone that has not been upgraded.
Manufacturing methods for artificial emeralds are improved every year, consequently more and more synthetic specimens emerge on the market; these stones can sometimes be differentiated from the natural ones only by professional gemologists.
Hence, the rule of thumb when buying an emerald is to purchase a certified stone.
Even Colombian emeralds ought to be certified. Considering that the deposit considerably affects the price, the certificate should specify the mining location.
Among other things, the certificate should verify whether the emerald has been ennobled in any way.
How to take care of an emerald?
When the jewelry is properly looked after, the rings retain their emerald luster:
Cleaning with a slightly warm soapy solution is the best option for an emerald. Such a procedure will help the stone restore its missing shine.
At the same time, a slight layer of dust can simply be removed with a soft flannel fabric.
Regarding the storage specifics, items containing emeralds are best stored separately from the diamond, ruby or sapphire jewelry. Nevertheless, a diamond cannot damage an emerald within the same jewelry piece, since they have no direct contact. Durability of an emerald (not to be confused with the hardness criterion) is high enough; however, the more cracks there are in the gemstone, the easier it can be damaged.
Ultrasonic or steam cleaning are highly inadvisable for emeralds treated with oil. Even minor heating may remove the oil. (Epoxy resins, on the other hand, are more resistant as fillers. Some resins are even ultrasound resistant.)
In order to keep your jewelry clean, carry out a light surface cleaning of the item every time you take it off. In case a more serious treatment is required, it is recommended to entrust this matter to a professional.