An Enchanting Engagement Ring! Lady's diamond engagement ring, single piece cast with a die struck head. Metal Type: .950 Platinum, stamped "Helzberg Signature" and "PD 950". Metal Weight: 2.20 dwt with the gemstones in place. Dimensions: 27.5 x 21.2 x 1.8 mm. Design: Platinum and diamond cathedral style solitaire, Center Gemstone: Round brilliant cut Diamond, Approximately 5.92 -5.92 x 3.63 mm, 0.75 ct by formula, Clarity: SI2, Color: H-I. Accent Diamonds: (12) Round brilliant cut Diamonds, Approximately 0.55 ct by formula, Average Clarity: SI1-SI2, Average Color: G-H. Approximately 1.30 ct total Diamond weight.