Star sapphires feature some of the most spectacular and well-known examples of asterism, like the 330-ct "Star of Asia," on display at the Smithsonian Museum of Natural History. Photo by Tim Evanson. Licensed under CC By-SA 2.0. (Cropped to show detail).
Article: Cutting Star Gemstones: Tips for Beginners
Credit: Tim Evanson
|Gemstone||Corundum, Sapphire, Star Sapphire|
|Natural or man made||Natural|
|Carat Weight||<i class="fa fa-square facet-search-color-swatch" style="color:#452a8b"></i> violetish Purple (vP)|