Opal and Diamond Cocktail Ring Crafted in: 18 karat white gold Set with: 1.70 carats of diamonds on the halo, 4.70 carats of natural opal Clarity: VS Color: G Handcrafted in Italy At Devon's Diamonds & Decor in Boca Raton, FL, we carry a large variety of diamond rings. Our selection includes: sapphire rings, emerald rings, ruby rings, opal rings, tanzanite rings, yellow diamond rings, topaz rings, stackable rings, gold rings, fashion rings, cocktail rings and much more.