Hand-cut cabochon, old stock Bisbee natural turquoise Origin: Arizona, USA Shape: round Color: blue Dimensions: 23 x 20 x 8 mm Weight: 28ct Natural stone (not stabilized). Signature red matrix. Backed for stability and durability. Handmade in Albuquerque, New Mexico. Recommended for use in bezel settings. Protect from heat and harsh chemicals. Do not leave immersed in water for long periods.