The most valuable attribute of Sapphire is the cornflower blue color, known as Kashmir Sapphire or Cornflower Blue Sapphire.Īnother valuable Sapphire type is the very scarce, orange-pink Padparadscha. Dark sapphires are much in the market but they never reach very high values. The tone is another important consideration. The top sapphires reach vivid saturation (pure royal blue) as most of the gems on the market are grayish. The closer a sapphire is pure blue the better, but saturation is also important. It typically grows in cylindrical sticks called boules, and requires a slow, expensive and energy-intensive production process.Ĭolor is the most important attribute of a sapphire. Durability is important because gemstones are susceptible to chipping. Lab created Sapphire corundum is a synthetically produced crystal whose with hardness on the Mohs scale that is second to diamond, making it extremely durable. However, the term Sapphire encompasses all other gem varieties and colors of Corundum as well, except Ruby which is the red variety of Corundum, which has its own name. In the gem industry, sapphire without any color prefix (such as blue sapphire) refers to the blue variety of the mineral Corundum. 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). Sapphires are the most valuable and rarest blue colored natural gemstones.
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