American Mined™ Teal Montana Sapphire™ 4mm Round Faceted Gemstone

Teal Montana Sapphire™ is cut from gem rough found in the mountains of western Montana; this gemstone displays an attractive blue-green color and is an ideal addition to custom jewelry designs. Sapphire is the birthstone for September. Sapphire (like ruby) is a gem variety of corundum classified as a precious gemstone. Sapphire is hard and durable, and is found in a wide range of colors, making it an extremely versatile gemstone suitable for any form of jewelry. Sapphires in any color other than blue are referred to as 'fancy' sapphires. Sapphire gets its color from titanium and iron oxides; the depth of color depends on the amount of oxides in the gemstone. In ancient times, some believed that the sky itself was an enormous sapphire into which the Earth was embedded; sapphires are credited in folklore as being sacred, of conveying wisdom, prophecy and divine favor. Rio is proud to offer the American Mined™ Collection, a growing selection of gemstones sourced from mines located here in America. These gemstones consistently present the excellent color, clarity and quality we look for in every gem we offer you. Each of these gemstones allows us to provide a clear, documentable path from the mine to your bench; you and your customers can be confident that every one is mined, cut and processed under conditions that meet all standards for worker safety, environmental protection and responsible production. Round-cut gemstones are highly popular and the most commonly available. Rio round gemstones are calibrated for size and hand inspected to ensure maximum attractiveness.

• Gemstone Type: Sapphire
• Stone Shape: Round
• Stone Size: 4mm
• Stone Type: Natural
• Color: Teal
• Birthstone: September
• Enhancement: Heat-treated (H)
• Mohs Hardness: 9
• Refractive Index: 1.76–1.77
• Specific Gravity: 3.97
• Brand: American Mined, AGTA
• Mineral Source: MONTANA
• Weight: 0.000 kg