Royston Turquoise 250-Carat High Dome Ring, Adjustable, by Zia, Navajo

A Navajo silversmith from the Zia family set a massive 250-carat high-dome Royston turquoise cabochon in a fine rope bezel on this adjustable sterling silver ring. At 250 carats, this stone is exceptional in scale — most turquoise rings feature stones of 10 to 50 carats. Royston turquoise from Lander County, Nevada is prized for its swirling blue-green color with warm brown and gold iron matrix. High-dome cabochons — cut with a pronounced arch rather than a flatter profile — maximize the stone's three-dimensional presence on the hand. Available exclusively through Turquoise Mustang.