Magnificent platinum, 18 karat gold, fancy vivid yellow diamond, colored diamond and diamond ring. Photo Sotheby's

Centering a cut-cornered square modified brilliant-cut Fancy Vivid Yellow diamond weighing 51.75 carats, flanked by two triangle-shaped diamonds weighing approximately 6.15 carats, the mounting decorated at the sides with round and oval-shaped diamonds weighing approximately 6.60 carats, further accented by small round diamonds of yellow hue weighing approximately .80 carat, size 6. Estimation 2,500,000 — 3,500,000 USD

Accompanied by GIA certificate no. 10840989 stating the diamond to be Fancy Vivid Yellow, Natural color, VS1 clarity.