14K Yellow Gold 1/3 CT Lab-Grown Diamond 18" Necklace. 28392 / Necklace / Set / 14K Yellow Gold / Round / Lab-Grown Diamond / 4.5Mm :: 1/3 Ct / 1Mm With Lobster Clasp / Vs, F+ / 18 In / Polished / 1/3 Ct Lab-Grown Diamond Solitaire 4-Prong Necklace