93
Ruby and diamond ring
Set with a cushion-shaped ruby weighing 9.37 carats, within a frame of brilliant-cut diamonds, size 53, signed Graff.
Accompanied by Gübelin report no. 20110081, stating that the ruby is of East African origin, with no indications of heating.
Estimate
CHF290,000 - 450,000
€307,000-476,000
$320,000-500,000