Sapphires are found in many colors from yellow, green, brown, pink, purple, & the very rare orange-pink sapphire. The most desirable color is blue, & this can range from a deep royal blue to a beautiful cornflower color. This volume peers into the vaults of Christie's, one of the world's major auction houses, to present some of the finest & most valuable jewelry ever to have come under the hammer at auction. This is a superbly illustrated guide to these precious artifacts. It includes pieces from such famous jewelry houses & designers as Cartier, Van Cleef, Harry Winston, Pierre Sterle, Bulgari, Boucheron, & Chaumet. Captions detail the designer, how the piece was made, who it belonged to, as well as quoting the estimate given by Christie's.Heady, Sue is the author of 'Sapphires Are a Girl's Best Friend ', published 1999 under ISBN 9780756776466 and ISBN 0756776465.