Metal type: 92.5% sterling silvernFace Measurements From South To North: 9mm (0.32u0026#34;)nChange the color to rose, yellow, black gold plated (extra charge)n1/2 sizes available at additional costnEngraving Available at Additional Cost; Gift Box Included; Excellent GiftnItem Specifications: Metal Type: Solid Sterling Silver. Metal Stamp or Halmark: 925. Gemstone Type: Lab Created White Opal. Face Measurements From South To North: 9mm (0.32"). Infinity Measurements from East to West: 17mm (0.86"). Band Thickness: 2mm. Rhodium For Anti Tarnish. Gift Box Included. ****Engraving Available**** (Extra Charge). st-RO16873-WO