Sapphire ring, Bulgari. Photo Sotheby's The heart-shaped sapphire stated to weigh 20.28 carats, collet-set within a gold mount, size 511/2, signed Bulgari. Estimation 36,000 — 55,000 CHF Accompanied by SSEF report no. 73782, stating that the sapphire...

Sapphire and diamond ring, René Boivin, 1960s. Photo Sotheby's The heart-shaped sapphire collet-set within a frame of baguette diamonds, size L, signed René Boivin, French assay and maker's marks. Estimate 8,500-12,500 GBP Property of a lady Sotheby's....

A pair of sapphire and diamond pendent earrings Each articulated drop set with five graduated heart-shaped sapphires, of various tints, within brilliant-cut diamond surrounds and suspended from diamond-set hook surmounts, diamonds approximately 1.80 carats...