This is a natural turquoise ring in a sterling silver setting. This turquoise was mined at the Morenci mine, and is a natural piece of turquoise. Daniel Zender is the artist. He has been making and selling jewelry for almost 50 years. this ring is a size 6, and can be sized. These rings are all one of a kind. Measures at 2 1/2mm x 2 1/2mm Turquoise measures at 1 1/2mm wide and just under 1 1/2mm long.