Silver Necklaces: Come with Certificate Moissanite is the best alternative to a diamond It can pass diamond tester Chain Size: 15.5" - 17.5" (40cm - 45 cm) adjustable Pendant Size: 1.2 cm X 0.65 cm Main Stone : Moissanite Diamond (Lab Grown)Main Stone Size: 6.5 mm (1 Carat)Color: D E F Clarity: VVS1Cut: Excellent Main Stone Shape: Round Brilliant Metal: Real Solid 925 Sterling Silver Stamp: S925Plating: Rhodium Plated Finish: High Polished Nickel Free Lead Free Guarantee High Quality