It’s that age-old question: why choose a turquoise bib when you could a diamond necklace? Eva Mendes, Rachel Zoe, and the Van Cleef archive hold the answers. In the annals of red-carpet jewelry ...

Every gemstone out there comes with its own list of alleged qualities. Emeralds signify fertility and rebirth. Sapphires are stones of wisdom. Amethysts protect against negativity. And aquamarines are ...

The American Southwest, including Arizona and New Mexico, is chock-full of ancient turquoise mines. Mesoamerica, including southern Mexico and Central America, however, have few if any. So researchers ...

The thought of turquoise jewelry immediately evokes images of a bygone era: Woodstock, Cher at the peak her career and even Jimi Hendrix, who never left home without a turquoise statement ring or a ...

Popularized by Turkish traders, embraced by Native Americans and now mined extensively by the Chinese, turquoise varies so widely in color and form that many American Indians say no two stones are ...

WASHINGTON -- The color of the universe is not an intriguing pale turquoise, as astronomers recently announced. It's actually beige and a rather ordinary beige at that. Two Johns Hopkins University ...

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 ...