Not only do jewellers have to know exactly what they are selling, but they have ethical, regulatory, and even legal responsibilities to disclose any treatments or enhancements to the customer prior to the point of sale. The consequences are real, especially in our age of social media and instant news-making. Detecting treatments and enhancements often requires advanced equipment and expertise. Let’s explore some of the nuances of detecting diamond colour treatments so you know exactly when to call in the experts.
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Laboratory-grown diamonds have a long, fascinating history—one which saw scientists pushed to their limit, helped determine the outcome of a world war, and truly highlighted the genius of human ingenuity and invention.
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For gemmologists, inclusions are among the most fascinating features observed in both mined and laboratory-grown diamonds.
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Laboratory-grown diamonds created through chemical vapour deposition (CVD) and high pressure, high temperature (HPHT) processes are grown by a number of manufacturers who specialize in this field.
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Most working in the industry are aware sapphires are routinely treated to increase their marketability. What many dealers, manufacturers, and retailers may not be aware of, however, is a relatively new treatment used to beautify unattractive sapphire: high pressure, high temperature (HPHT).
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Beginning in June, the Gemological Institute of America will offer education to help gemmologists better recognize synthetic diamonds.
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