This is a beautiful agate and amethyst 2-strand twisted necklace in platinum over sterling silver. It boasts one solitary 10mm round agate gemstone at the center and two rows of amethyst gemstones that in total weighs 53.20 ctw. It is 20 inches in length with a lobster claw clasp that is signed and stamped 925. The platinum plating will prevent the silver from tarnishing for years to come. The cuts on the amethyst beads sparkle as they catch the light.