Star corundum can be red, pink, blue, black, gray, brown, purple, or yellow—practically every color under the sun. The term “star sapphire” encompasses all colors of star corundum except red, which is ...

The colors attracted jewelry designers who wanted to move away from traditional hues of red, blue, and green. Now, contemporary designers arrange fancy sapphires in stunning rainbow suites. Corundum ...

Experts say the stone, which is pale blue in colour ... fell out of the cluster and they were found to be high quality star sapphires. Ratnapura, which means city of gems in Sinhalese, is known ...

Nature in her bounty has chosen the bosom of Sri Lanka to enshrine some of her rarest treasures. Blue Sapphires, Cat's Eyes, Alexandrites, Rubies, Star stones found embedded in layer of gravel and ...

Researchers at Heidelberg University are studying the formation of this characteristically blue-colored crystal in volcanic melts Sapphires are among the most precious gems, yet they consist ...