Turquoise needs no translation in any culture: sky-to-robin’s-egg blue copper phosphate, sacred from Persia to the American Southwest for five thousand years. Fine untreated stone is now among the scarcer classics; hardness 5–6, matrix patterns welcome.Every turquoise at GEMIC Institute is natural and tested against dyes and stabilizers in our Siem Reap laboratory, then certified and photographed piece by piece. Unique stones; worldwide tracked shipping, 30-day returns.