The lack of a grading system for the popular stone has prompted a father-son team to spend the last five years working on one. Turquoise stones from the blue and green master sets at the Turquoise ...

Forbes contributors publish independent expert analyses and insights. I am the founder of La Patiala, the luxury encyclopedia. Turquoise is one of December’s birthstones — the other December ...

ALBUQUERQUE, N.M. (KRQE) — It’s a “hydrated phosphate of copper,” but you may just know it as turquoise. The blue-green mineral widely regarded as a gemstone has significant deposits across the world, ...

Sacred to Indigenous people, beloved by collectors, one blue-green stone has huge cultural cachet in the “Land of Enchantment.” Indigenous artisans in New Mexico are known for their turquoise jewelry ...