Sotheby's, Geneva, May 2009

Lot 47 Ruby Ring

Set with a sugar loaf cabochon ruby weighing 5.18 carats, between buff-topped calibré-cut rubies, mounted in platinum, size 53.

Accompanied by GRS report no. GRS2007-012550 stating that the cabochon ruby is of Burmese origin, with no indication of thermal treatment.