(Being one of the world’s great jewelry influencers, the Queen’s choice set off a major 19 th century turquoise trend.) And some of jewelry’s most prized pieces include this ancient stone.

The large turquoise beads are interspersed with gold and gemstone-set beads. ... Mish Fine Jewelry Turquoise Nugget Waterfall necklace in 18K gold with 320 grams turquoise and brown diamond, ...

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 ...