Lot 2153. A 7.08 carat, D color, Internally Flawless, Type IIA diamond ring, by Van Cleef & Arpels. Estimate HKD 3,800,000 - 4,800,000 (USD 486,400 - 614,400). © Poly Auction Hong Kong Limited

Set with a marquise-shaped diamond weighing 7.08 carats, flanked on either side with tapered baguette-shaped diamonds, mounted in platinum, ring size 6 1/2. Signed VAN VLEEF & ARPELS, no. N.Y. 55540. 

Accompanied by report no. 2175728748 dated 4 January 2017 from the GIA stating that the 7.08 carat diamond is D color, Internally Flawless clarity Also accompanied by a GIA appendix letter stating that the 7.08 carat Marquise Brilliant diamond described in GIA Diamond Grading Report No. 2175728748 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.