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Sapphires is the rarest and most valuable blue colored natural gems. They are a highly desirable gemstone due to their beautiful royal blue color, hardness (second only to diamonds), durability, and luster (sparkle from light performance within the gemstone). In the gem-industry, sapphire is used to describe the blue variety Corundum. The term Sapphire is used to refer to all the other colors and gem varieties of Corundum except Ruby, which is a red variety of Corundum. Lab created Sapphire corundum is a synthetically produced crystal whose with har
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