Style: Heart Metal: 14K White Gold Stones: (20) Round Diamonds Total Carat Weight: 0.25 Ctw Setting: Shared Prong Set Chain: Box Link Length: 18 Inches Center Dimension: 10.80mm X 12.65mm (Approximately 2/5 In X 1/3 In) Vendor Style No.: PH-0607A78W4BC