Jewelry Report Description: One 18k Yellow Gold Necklace, 16 inch length, stamped "750", weighing in total 1. 35 Grams of Gold Natural Diamond Shape: Round Brilliant Cut, Marquise Total Est. Weight: 0. 16 ct Color: Range F-G Clarity: VS-SI Finish: GOOD Certified: International Diamond Laboratories One 18k Yellow Gold Necklace, 16 inch length, stamped "750", weighing in total 1. 35 Grams of Gold