An elegant presentation, this blue and white lab-created sapphire open ring makes an impressive fashion statement. Sterling silver the open design features a sparkling 6. 0 x 3. 0mm marquise-cut white lab-created sapphire on one side and a 10. 0 x 8. 0mm emerald-cut blue lab-created sapphire on the other round white lab-created sapphires line the shank