Sterling Silver Multi-Gemstones and Diamond Double-Chain Necklace (0.12 cttw, I-J Color, I2-I3 Clarity) Necklace featuring elegant bib crafted from round quartz, amethyst, and Swiss blue topaz stones accented with small diamonds 18" double rolo chain with lobster-claw clasp The natural properties and composition of mined gemstones define the unique beauty of each piece. The image may show slight differences to the actual stone in color and texture. All our diamond suppliers confirm that they comply with the Kimberley Process to ensure that their diamonds are conflict free. Imported