![]() ![]() ![]() We invite you to view our full selection of sapphires, blue sapphire rings and custom sapphire jewelry and discover what makes the Natural Sapphire Company the world's greatest collection of natural sapphires. Our jewelry and gemological specialists will work with you from start to finish to create your custom sapphire jewelry. All of our sapphires are cut on our premises and are available loose or mounted in a custom setting. We offer a vast selection of blue sapphires, pink sapphires, yellow sapphires, white sapphires and other unique natural sapphires. Those varieties are also considered sapphires, and are sometimes called 'fancy sapphires'. In fact, gem-quality corundum can occur in many different colors, such as orange, pink, green, purple, and others. 2.40 cts Star Sapphire, Sri Lanka MG-SS12. It is usually cut into a dome shape to show a star. 17.52 Carat Best Thailand Black Star Sapphire - Gorgeous gemstar 491.00. Black star sapphire, also known as natural star sapphire is a type of corundum (aluminum oxide). Another famous variety of corundum is ruby. Star Sapphire 15.37 Cts Natural Black Star Sapphire Gemstone limragems 299.00. Our natural untreated sapphires offer true beauty, rarity and superior value compared to treated sapphires. Sapphire is the blue variety of the mineral corundum, and is the most popular blue gemstone. This refers to a clear star-like effect caused by the presence of tiny needle-like inclusions, often consisting of the minerals rutile or hematite. Our sapphires are not synthetic, heated to extreme temperatures, diffused, irradiated, glass filled or oiled. Black star sapphires are black sapphires that display asterism. Synthetic sapphires have been produced for more than a century, mostly by melt, flux, or hydrothermal solution methods (Hughes, 2017). The most common processes involve heat treatment to improve color. ![]() ![]() At the Natural Sapphire Company we specialize in providing our customers with the finest quality natural sapphires. Natural sapphires, which originate in certain igneous or metamorphic geologic environments are commonly treated to improve their color or clarity. ![]()
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