Sotheby's, Geneva, May 1998

Lot 413 An Important Ruby and Diamond Ring, by Tiffany & Co. (Ruby of 14.16 ct)

Claw-set with a cushion-shaped ruby weighing 14.16 carats, flanked by triangular-cut diamonds, mounted in platinum, size: 52.5, signed: Tiffany & Co., accompanied by GRL report no. 9803066 stating that the ruby is of Thai origin, enhanced by heat