925 Sterling Silver Round Zircon Ring 925 Silver Ring Gift for Her sterling silver cubic zirconia ring 925 with cushion diamond Two Piece Solitaire Round Cut Stacking 5.85CT Bridal Band Women Ring Amazon.com: Solid 925 Sterling Silver Square CZ Cubic Zirconia Ring. Pieces: 1 piece Material: 925 sterling silver, Zircon Care instructions: Avoid wearing during exercise, as sweat will react with the jewelry to produce silver chloride and copper sulfide, which causes the jewelry to deteriorate and corrode over time. Imported Product measurements: 6: Circumference 2. 1 in 7: Circumference 2. 2 in 8: Circumference 2. 3 in Weight 2. 9 oz (82. 74 g)