Sterling silver bezel set. Freeform Louisiana Opal with great Play of Colors and a ‘Wish Cave’ to boot! Fabulous flashes of purple, green, blue and teal. The ‘wish cave’ is a natural opening in the stone that holds all your wishes close at hand. Theres is an oval amethyst stone above the opal and a moveable bale on top . Opal measures 21.5 x 11.5 mm . Amethyst 4 x 6 mm . LA427 .