How to distinguish a natural stone from its imitations and its synthetic test-tube brothers.4/27/2020 What are the characteristics that a precious stone must have to define itself as quality? In reality, man has attempted to imitate natural stones since ancient times.
Synthetic material can be abridged in these three types:
Both the use of colored glass and composite materials are not recent discoveries. The first productions date back to Roman times. Artificial gemstones have physical characteristics different from the imitated natural materials and therefore allow easy recognition. The "braces, triplets represent the composite material." The last challenge, synthetic products Imitated stones are the newest product of man and are not a sensible replication. With the synthesis process in the laboratory, it is possible to produce rubies, sapphires, emeralds, loose gemstone, and anything else having the same physical and chemical characteristics as natural ones. Sometimes these processes are very expensive and limit their production as happens for the synthetic diamond for which it is preferred to use similar synthetic gemstones but not existing in nature such as YAG, GGG, cubic zirconia, and synthetic moissanite. Some compare these products to vitamins, and there are natural ones (which of course cost more) and non-natural ones produced in the laboratory. Artificial vitamins and synthetic stone have a similar chemical arrangement as their corresponding natural item. Therefore they cannot be defined as simple "imitations." Synthetic products are complicated to recognize, but they differ from the natural ones! There is a difference between the mother nature product that has spent millions of years producing a crystal, and that originated in a few weeks by man. The first products were more easily recognizable, but nowadays, we must make them think of their perfection or the production of stones too beautiful to be exact! Inclusions and fractures are not always negative: Some natural resources are normally incorporated and cracked. Inclusion of a tiny crystal, e.g., in ruby, can point to both its source and its birth. The total absence of enclosure should create us believe above all if we are assessing materials that in the environment are usually included, such as emeralds and rubies. Attention to detail: The shape, the type of cut, and the care in the polishing of the artificial gems are other elements that can suggest us to be in front of a synthetic. Large stones, for example, emerald, are hardly available in brilliant round cuts. The same is true for other stones that are commonly cut with oval or mixed cuts. Often the cutter modifies the classic cut to recover more material from the raw stone and enhance its color, and this causes an asymmetry in the cut. The price: Generally, the synthetic stones are sold at very attractive prices, and the stones certainly present themselves very well, but pay attention to the deal! Therefore we have to buy loose gemstones. No test is worth the word "natural" on a gemological certificate: The tests that a gemologist must do to distinguish a natural stone from a synthetic one are many because often one is not enough to distinguish them. It is for this reason that a precious gemstones supplier prefers the stone with a microscopic inclusion over the pure one since that small inclusion is considered the clue and irrefutable proof of the naturalness of the stone. Article Source : https://wholesaleloosegemstoness.blogspot.com/2020/03/how-to-distinguish-natural-stone-from.html
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The world of precious stones is a vast and fascinating area. But sometimes it is complex to recognize the quality of the gem and especially its value!
Bad-natured people very often use the naivety of the buyers by selling them low-quality Corundum Gemstones at exorbitant prices. Although knowledge of gemology requires years of study in addition to the use of technical instruments, it is no secret to access the knowledge of the basic rules. Tip 1: pay attention to the color of the gemstone Its color determines 50 % of the value of a lab emerald. The golden rule is neither too light nor too dark. A beautiful gem must have a balanced and harmonious color. Harmony of colors Its color should be the same, perfectly visible throughout the lab created emerald - this does not apply to Opals - No angle of the gemstone should be more shaded or lighter, the color should be uniform. Ideal color? Here is a yes and a no. There are remarkable colors such as the famous lab grown white sapphire, Kashmir Sapphire Blue or Ruby Red "Sangre de Paloma" but we must agree that the ideal color should correspond to each type of precious stone. For example, the Peridot, its "perfect" hue, should be a beautiful lime green, softened by slightly yellow tints, well balanced, clear, and bright. In the case of the created emerald, the green must be very intense with reflections of blue. A hydrothermal emerald too light will have less value than an emerald with a well-defined color and higher saturation. And staying in the green gems if we take the Diopside, its green is neutral, powerful, and very bright. Should we then acquire only perfectly colored gemstones? Logically not! Do not forget that ultimately the perfect color is the color that you like the most. Take the case of White Gemstones. At the moment, the most popular is the Amethysts of Uruguay with intense violet color, well-marked, with dark blue reflections. Clients have every right in the world to think that way because color perception is subjective, and it has to do with the personal taste of each one! Tip 2: Pay attention to the weight of the gemstone It is wrongly believed that the total carat weight of emeralds for sale determines its value, that is, 10 carats of Diamond is 10 carats of Diamonds. Attention. Value not proportional to weight The dimension of the emerald stones for sale will then be of great importance when evaluating its price. But, attention, its value will not increase proportionally to its weight. All weights are not equal Here we have another factor to consider. Russia offers an incredible quality of Emeralds of a superb color. Russian Emeralds are therefore highly coveted by collectors due to their exalting color. But to buy emerald stone, they are found only in small dimensions! It is very rare to find Russian Emeralds of more than one carat. For this reason, a 2-carat man made opal will cost more than a 3 carat Brazilian Emerald. Scarcity plays a role in the price of the Precious Stone. Article Source : http://buyloosegemstones.over-blog.com/2020/04/tips-for-the-best-choice-of-your-jewelry-with-precious-stones.html |
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