This lab-created sapphire and diamond bow necklace is a darling gift for someone special or yourself. Sterling silver the bow design features a pair of 6. 0mm heart-shaped lab-created sapphires - one in white, the other in pink diamonds line the center and the ribbons 1/20 ct. T. W. Of diamonds 18. 0-inch diamond-cut cable chain necklace; spring-ring clasp