I've held onto this beautiful boulder opal for several years now--finally schemed up the perfect setting! I've wrapped it in a bezel of 22k gold and set it upon a platform of 22k gold/silver bimetal. Below this level is a silver pebbled layer with gold dot accents along the outer edge. A 4mm tanzanite provides the perfect accent of color and sparkle. The simple band measures a US size 7 1/2. Please inquire about resizing...