Ruby is the birthstone for July.
The Mogok valley of Upper Burma is famous as the source for the finest and rarest rubies of all, know as “pigeon’s blood” for the stones’ intense red color. Another major source of rubies is Thailand, well-known for dark, brownish-red rubies. Both Thailand and Burma regard the ruby as their national stone.
Rubies are among the highest priced gemstones. Large rubies are harder to find than large diamonds, emeralds and sapphires. As a result, rubies’ value increases with size more than any other gemstone.