Wade Necklace, c. 1900, Tiffany & Co Gold, platinum, diamonds 36 x 8.5 cm. The diamond necklace features large, impressive stones that were made more readily available in the late 1800s by the opening of the vast diamond mines in South Africa. Tiffany’s designer contrasted pendants of the largest diamonds with delicate garlands of tiny stones to create an especially lavish array of brilliance around the neck