Pair of mid-20th century diamond flowerhead and stem earrings, circa 1950

A moonstone and diamond heart shaped brooch/pendant

Antique diamond and platinum line bracelet, circa 1910

A pair of old mine cut diamond studs

An emerald and diamond ring set in a platinum mount

An antique marquise cut diamond ring

A late 19th century sapphire and diamond crescent brooch

Rose gold,diamond and pink sapphire "Nouvelle Vague" ring

Cartier

Gold and diamond hoops

Van Cleef & Arpels

Art Deco platinum and diamond long chain, circa 1920

A pear cut diamond "toi et moi" ring

An early 20th century openwork diamond and platinum heart shaped pendant

Four channel set gem set rings

Edwardian emerald and diamond ‘toi-et-moi’ ring

A mid-century diamond ring

A 1930s platinum and diamond line bracelet

An early 20th century diamond bracelet, circa 1915

An old cut diamond bracelet, 1940s

An antique diamond riviere with a cluster pendant

An early 20th century platinum and diamond necklace