AN UNMOUNTED CIRCULAR-CUT DIAMOND
PROPERTY FROM THE MARION RUMSEY CARTIER COLLECTION AT SAINT LOUIS UNIVERSITY
AN UNMOUNTED CIRCULAR-CUT DIAMOND

细节
AN UNMOUNTED CIRCULAR-CUT DIAMOND
Weighing approximately 4.02 carats
With report 11201233 dated 10 September 2013 from the Gemological Institute of America stating that the diamond is D color, VVS2 clarity

Accompanied by a supplemental letter from the Gemological Institute of America stating that the diamond has been determined to be a Type IIa diamond. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency. Type IIa diamonds were first identified as originating from India (particularly from the Golconda region) but have since been recovered in all major diamond-producing regions of the world. Among famous gem diamonds, the 530.20 carat Cullinan I and the 105.60 carat Koh-i-noor are examples of Type IIa

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