Sapphire and diamond ring, Bulgari. photo courtesy Sothebys The cushion-shaped sapphire weighing 13.08 carats, to a mount set with baguette, fancy- and brilliant-cut diamonds, mounted in white gold, size 50, signed Bulgari. Est. 70,000—100,000 CHF. Lot...

An important sapphire and diamond bracelet, by Mouawad. Photo: Christie's Images Ltd., 2010 Of flexible design, the bracelet mounted with a sugarloaf cabochon sapphire weighing 180.86 carats, set within an emerald-cut diamond demi-surround to the tapered...

Sapphire and diamond bracelet. Photo Sotheby's Cushion-shaped sapphires weighing 6.87, 9.58, 8.97, 10.68, 14.62, 18.57, 10.83, 10.43, 10.03, 8.46 and 6.00 carats, emerald-cut diamonds weighing approximately 7.10 carats, mounted in platinum, length 7 inches....

An Impressive Unheated Ceylon 32.08 carats Sapphire and Diamond Ring Set with a sugarloaf cabochon unheated sapphire weighing approximately 32.08 carats, within a pavé-set diamond surround, to the polished gold half hoop, mounted in platinum, size 6 1/2....