Item Specifications: Metal Type: Sterling Silver. Metal Stamp or Hallmark: 925. Metal Purity: 92.5% Sterling. Gemstone Creation Method: Simulated. Face Measurements From South To North: 8mm. Change the color of the metal to rose, yellow, black at additional charge Please contact us. Don't know your ring size?. Here you can find a link to a conversion table of all ring sizes of all country's: (copy & paste into your browser). http://pics.bluenile.com/assets/chrome/pdf/ring_sizing_guide_0610-CA.pdf