B.Tiff Solitaire Pendant, Stainless Steel Pendant Tension Set with 1.0ct Diamond Cut Round Signity Star. The Diamond Cut Signity Star's are bright white with more sparkle than diamonds. Diamond Cut Signity Star is a high grade cubic zirconia cut to ideal standards for maximum reflection. Material: Surgical Stainless SteelStone: Diamond Cut Round Signity Star Ring Width: 18.0mmB.Tiff jewelry is made of the finest nickel free surgical stainless steel.