Amore 925 Sterling Silver 1 CT Solitaire White Topaz Natural Gem Diamond Alternative Engagement Bridal Wedding Ring. White Topaz is a great Alternative to expensive Diamonds. Specifications: Stone: Genuine Natural White Topaz Gemstone Stone Size: 1, 2, or 3 CT Metal: 925 Sterling Silver (Stamped 925) Plating: White Gold, 14Kt Gold, or Rose Gold.