This lab grown diamond engagement ring features one 3/4 carat center lab grown diamond in G-H color, VS clarity. It is surrounded by 30 lab grown diamonds totaling 1/4 carat. Total carat weight is 1 carat. This ring is in sterling silver. 31 Clarity rating: VS2 Polished finish Prong setting Warranty available, Limited liability warranty, 60 days USA Imported Product Specifications 9mm 1 Material & Care Metal, Sterling silver Clean with a soft bristle brush or cloth and warm soapy water.