10 Most Famous Colored Gemstone Engagement Rings

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Though diamonds are a girl’s best friend and the classic choice for an engagement ring, colored stones are a trend that continues to show up on many a celebrity’s ring finger. Opting for a colored stone is a fresh take on the traditional engagement ring, and the candy colored sparklers are unique and beautiful. Though many have tried the trend, a few specific engagement rings have stood out.

What is a Turquoise Gemstone

Article is from Geology.com

What is Turquoise?

Turquoise is an opaque mineral that occurs in beautiful hues of blue, blue-green, and yellow-green. It has been treasured as a gemstone for thousands of years. Isolated from one another, the ancient people of Africa, Asia, South America and North America independently made turquoise one of their preferred materials for producing gemstones, inlay, and small sculptures.

Chemically, turquoise is a hydrous phosphate of copper and aluminum (CuAl₆(PO₄)₄(OH)₈·5H₂).