Tibetan Turquoise Power RingSet in solid 925 Sterling Silver, this natural Tibetan Turquoise has been left completely untreated, simply hand cut and polished to reveal its raw Himalayan beauty. Mined high in the Himalayas, its rare blue tones were formed over millions of years within copper rich rock. Known as the Sky Stone, Tibetan Turquoise has long been worn as a symbol of protection, strength, and deep connection. Stone: Natural Tibetan Turquoise. Material: 925 Solid