Gold, silver, sapphire and diamond necklace, Buccellati. Photo Sotheby's The highly flexible necklace set with round and cushion-cut sapphires weighing approximately 17.50 carats, the bib centered by an old European-cut diamond weighing approximately...

Platinum, sapphire and diamond necklace, France. Photo Sotheby's. The swag necklace of garland design, set with 18 cushion and oval-shaped sapphires weighing approximately 100.00 carats, accented by old mine, old European, single and rose-cut diamonds...

A sapphire and diamond necklace, by David Webb. Photo Christie's Image Ltd 2013 Set at the front with an oval cabochon sapphire, within a circular and baguette-cut diamond two-tiered surround, to the five-strand sapphire bead neckchain, intersected by...

An antique sapphire and diamond necklace, by Biedermann. Photo Christie's Image Ltd 2013. Designed as a graduated series of ten cushion-cut sapphire plaques, each with a pendant hook for suspension, set with rose-cut diamonds, within an old mine-cut diamond...