An antique ruby and diamond necklace. photo: Christie's Images Ltd 2010 Suspending a bezel-set oval-cut ruby, weighing approximately 6.73 carats, within an openwork old European and single-cut diamond scalloped surround, from a line of circular and old...

A rare "mystery-set" ruby and diamond brooch, by Van Cleef & Arpels Designed as two calibré-cut ruby laurel leaves, enhanced by calibré-cut diamond stems, mounted in platinum and 18k gold, 1936, with French assay marks and maker's marks, in a Garrard...