For thousands of years, people have prized turquoise for its sky-blue colour and rarity. And, historically this gemstone has been esteemed in many cultures around the world as a holy stone or bringer of good fortune. Although many of the world's original mines are now depleted, others remain in production today—where workers extract precious metal by hand.
The most common form of turquoise used in jewellery today comes from Chinese mines. These beads tend to be small in size, while the more expensive ones are made by fusing together shreds of larger gemstones and cutting them into shape—a process known as “matrixing'.