This sterling silver ring features a piece of American Turquoise, known for its color ranges of blues, greens, browns and blacks. Each silver design element of each ring is made by hand and soldered together. Each piece of Turquoise for these rings will vary in color, pattern, shape and sometimes slightly in size. Materials: Sterling silver, American Turquoise. Size: Each ring measures approximately .75" in length, but may vary depending on stone shape.