Sterling Silver 9-9.5 MM Freshwater Cultured Pearl, and Accent Diamond Pendant (0.025 Cttw, G-H Color, I3 Clarity), 18" Center stone is a high-luster black Tahitian cultured freshwater pearl. Twinkles with icy diamond accents in a pave setting. Set in finely crafted sterling silver. Cable chain secured with a spring ring clasp. 30-day money-back guarantee on every purchase.