281a: A Rare Golconda Type 7.20 Carat Diamond,
A Rare Golconda Type 7.20 Carat Diamond,
faceted in a heart shape measuring approximately 11.28 x 13.94 x 7.59 mm.
Accompanied by a Gemological Institute of America diamond grading certificate number 2141469707, dated February 16, 2012, stating Color: D, Clarity: VVS1, Polish: Good, Symmetry: Very Good, Fluorescence: None.
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.