In the trade, it is essential that laboratory-grown diamonds can be identified because consumers need to know what they are buying, and because there are often significant price differences between them and natural gemstones. It is increasingly important for gemologist appraisers to make that

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There are many diamonds (both loose and mounted stones) that come across my desk on a daily basis for inspection as a part of the appraisal process. One of them is this diamond. It is an otherwise I3 in clarity before treatment (I3 is the lowest clarity grade in the GIA diamond grading system

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Scientists estimate that the earth is about 4.6 billion years old. According to GIA, research published in 2010 indicates that the youngest known diamonds—found in a Brazilian kimberlite—are just 107 million years old. On the other hand, the oldest known diamonds—from Canada’s Ekati mine—are as

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It is a common practice in the trade that virtually all emeralds have been fracture filled by oil, resin or other substances to enhance their clarity, sometimes to enrich their color, or even durability. The geological conditions where emerald grows just make it very rare for emerald to be

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