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October 04, 2022

Pre-Auction Analysis of Magnificent Jewels

FCRF said, “Our Sotheby’s Hong Kong Pre-Auction Analysis focuses on elements that are not always visible to the untrained eye. We discuss characteristics such as Inner-Grade, Color Dispersion, and Undertone – collectively termed IDU. Professionals use the IDU method intuitively when analyzing a Fancy Color Diamond.”  The acronym we use makes these elements easier to remember.

Members who read this analysis should see it as a valuable supplement to the GIA report. A detailed explanation of the FCRF’s grading methodology can be found at the end of this article. We recommend reviewing it closely to broaden one’s professional vocabulary for describing fancy color diamonds to clients. 

FCRF analyze and grade diamonds under LED lights and relative to their grade on the GIA report.

 

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