Impressive 30.13 carats Fancy Intense Yellow Diamond and 25.13 carats Type IIa Diamond 'Toi et Moi' Ring. Estimate 28,000,000 — 33,000,000 HKD (3,154,423 - 3,717,713 EUR). Photo Sotheby's

Of toi et moi design, set with a cushion-shaped fancy intense yellow diamond weighing 30.13 carats and a cushion-shaped diamond weighing 25.13 carats, mounted in platinum and 18 karat yellow gold. Ring size: 6½

Accompanied by GIA report numbered 2155483892, dated 28 February 2014, stating that the 30.13 carat diamond is natural, Fancy Intense Yellow colour, VS1 clarity. Also accompanied by GIA report numbered 1166084445, dated 6 June 2014, stating that the 25.13 carat diamond is E colour, VVS1 clarity; further accompanied by diamond type classification report stating that the diamond is determined to be a Type IIa diamond. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical transparency.

Sotheby's. Magnificent Jewels & Jadeite, Hong Kong, 06 avr. 2015, 01:00 PM