Name: Lab Grown Diamond Pear Bezel Necklace Short: Even more delicious than a ripe summer pear. Long: Sitting brilliantly on our classic 1.5mm diamond cut cable chain, adjustable from 15" to 18", our Lab Grown Diamond Pear Bezel Necklace is a stunner. Totalling .21tcw, this 4x3mm bezel set diamond is an everyday favorite.