84 opiniones de Colegio Ingls. (Escuela) en Iquique (Tarapac) SAPPHIRE DIAMOND COCKTAIL RING 6.9 gram18k WHITE GOLD CLUSTER HALO NATURAL BIG. Why we love it: This sapphire and diamond cocktail ring features an invisible set cluster of bright blue sapphire in a striking, diamond encrusted setting! Highlights: 0. 25ct cluster of 4 princess cut sapphires with gorgeous, well saturated color 0. 75 carats of diamond accents add substantial sparkle Diamonds are bright white and eye clean Substantial 18k white gold setting weighing 6. 9 grams Dimensions: 11. 6mm across (north south) and 5. 6mm from the finger to the top of the ring.