This beautiful handmade gemstone ring is made from fine sterling silver hallmarked with the 925 metal stamp. 925 sterling silver is made from 92.5% silver and 7.5% copper. The copper is added to stabilize the silver so that it can hold its beautiful shape and anti tarnish. The stunning 12x16mm green turquoise displays a beautiful copper matrix within the stone. Comes in a small plastic box as shown.