Sterling Silver 3/4 CT Lab-Grown Diamond 18" Necklace. 28392 / Necklace / Set / Sterling Silver / Round / Lab-Grown Diamond / 5.75 Mm / 1.3Mm With Lobster Clasp / Vs, F+ / 18 In / Polished / 3/4 Ct Lab-Grown Diamond Round 4-Prong Necklace