Lot 318. Magnificent Platinum and 19.25 carats Type lla Diamond Ring. Estimate 1,800,000 — 2,200,000 USD. Photo: Sotheby's.

Centering an emerald-cut diamond weighing 19.25 carats, flanked by two modified calf's head-shaped diamonds weighing approximately 1.40 carats, size 6¼.

Accompanied by GIA report no. 1176455100 stating that the diamond is D color, VVS1 clarity. Together with the original working diagram stating that the diamond may be potentially Internally Flawless. Also with a letter from the GIA stating that the diamond has been determined to be Type lla.