Rare and important fancy vivid blue diamond and pink diamond ring. Photo Sotheby's

Centring on a cushion-shaped fancy vivid blue diamond weighing 6.01 carats, flanked on each side by an oval pink diamond weighing 0.46 and 0.44 carat respectively, mounted in platinum. Estimate 70,000,000 — 85,000,000 HKD - Lot Sold . 79,060,000 HKD

Ring size: 5½

Accompanied by GIA report numbered 2135398688, dated 25 May 2011, stating that the 6.01 carat diamond is natural, Fancy Vivid Blue colour, VVS2 clarity; also accompanied by GIA reports numbered 5131528493 and 2135528482, dated 20 and 27 June 2011, stating that the 0.46 and 0.44 carat diamonds are natural, Fancy Vivid Purplish Pink and Fancy Vivid Pink colour, I1 and VS2 clarity respectively.

Sotheby's. Magnificent Jewels and Jadeite. Hong Kong | 05 Oct 2011 -www.sothebys.com