Cultured Pearl, Diamond, Platinum Necklace. Composed of seventy-three round cultured pearls ranging in size from approximately 8.4 mm to 5.2 mm, completed by a clasp featuring one old European-cut diamond weighing approximately 0.75 ct., accented by six old round-cut diamonds weighing a total of approximately 0.10 cttw., set in a platinum mounting, forming a graduated 20 1/2 inch necklace. {Gross Weight: 15.9 dwts}