Please note that our showroom address has changed. Our new address is  550 Fifth Avenue, Suite 700.


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Diamond Inventory
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Important Tools

The quality of a diamond’s cut is an important and difficult attribute to measure. Before making your decision, you should get objective, empirical evaluations and measurements of a diamond’s cut with reports from the BrillianceScope and the Sarin Proportion Analyzer.

The GemEx Article and BrillianceScope Tutorial detail the legitimacy and uses of GemEx's BrillianceScope. The purpose of the BrillianceScope is to measure the “wow” effect of a diamond, namely its ability to sparkle, which is often difficult to determine under the lighting in a jeweler’s store. It does this by rating a diamond’s light performance by measuring the light refractions from a diamond. It measures three areas: brilliance, fire, and scintillation.


GemEx Article

Click here to learn more about the importance of the BrillianceScope
BrillianceScope Tutorial

Click here to learn how to use the BrillianceScope
Sarin Report

Click here to learn about the Sarin Porportion Analyzer
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Monday to Friday 10:30am to 6:00pm
Saturday 11:30am to 5:30pm.

David S. Diamonds
550 Fifth Ave, Suite 700, New York, NY 10036



Phone: 1-888-DAVID81 or (212) 921-8029
Fax: (212) 827-0036
Email: davidsdia@aol.com