Vintage Sterling Green Amethyst Chrome Diopside Necklace 17.5 to 18.5 Inches Product link $212.00 Out of Stock Quantity This beautiful necklace is sterling silver. It features an estimated 18 carats in green amethyst and 2.8 carats in chrome diopside. It is adjustable from 17.5 to 18.5 inches. Marks: 925 Condition: Excellent