This exquisite necklace features 36 matched sapphires from Sri Lanka totaling 195 carats. Their deep sky-blue color contrasts brilliantly with a sparkling sea of 435 diamonds weighing 84 carats. Harry Winston, Inc., signed the necklace for the donor. The Hall Sapphire Necklace was donated by Mrs. Evelyn Annenberg Hall to the Smithsonian Institution National Museum of Natural History in 1979.