Monday, November 18, 2013

Rock Trivia: Ruby


 Rubies have been treasured since ancient times; today they are more valuable than diamonds.
The color of Ruby ranges from bright red to dark reddish-brown. The most valued color is a deep blood red with a slightly bluish ...tint. This color is called "Burmese Ruby" or "Pigeon's Blood Ruby". Ruby from Burma is famous for its exceptional coloring, and has traditionally produced the finest Rubies. Burmese Rubies are generally small; large, top quality Burmese Rubies are often worth millions of dollars. A Ruby with Inclusions of small parallel Rutile needles is known as a "Star Ruby". When these are transparent, they are highly prized. Star Rubies generally exhibit six ray stars, though twelve ray stars are also known.
The color of Ruby is usually caused by tiny inclusions of chromium. Rubies will sometimes display a lighter and more intense color when viewed at different angles.
Pictured is a fabulous necklace, made by Cartier for the Maharajah of Patiala in 1928. It is platinum set with rubies, diamonds and pearls.

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