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Montana sapphire jewelry in a rainbow of colors affordably set in sterling silver, gold filled and 10 & 14k gold, in earrings, pendants, necklaces, rings and bracelets. Most are Rock Creek sapphires from the Philipsburg area of Montana but also now featuring Montana Yogo sapphires from the middle of the state! The September birthstone is sapphire. Please ask about other colors of Montana sapphires in settings shown.
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Our newest addition is the Yogo sapphire jewelry everyone is asking for. We have a new page with all Yogo sapphires! Any 3mm item in Montana sapphire or under can be made with Montana Yogo sapphires, just ask.
Montana's nickname, The Treasure State is a fitting one as sapphires can be found throughout the state. Most can be attributed to four major locales: Yogo Gulch, Rock Creek, Dry Cottonwood Creek, and the gravel bars along the Missouri River northeast of Helena. The Missouri River, Rock Creek, and Dry Cottonwood Creek deposits are associated with high yields of high-clarity fancy sapphires, with colors ranging from light pinks, purples, oranges, yellows, and greens, to pale blues.
Sapphire production in Montana was a byproduct of the gold rushes of the 1860s. Early prospectors searching for gold in the gravel of the Missouri River discarded the annoying blue pebbles that continually clogged their sluices. The discovery that these stones had value was discovered when samples were sent to Tiffany and Company in 1865.When Tiffany purchased the lot for $3,750 and declared that the stones were “sapphires of unusual quality,” a small scale sapphire rush began. A year later, the source of the sapphires, an igneous dike about five miles in length, was discovered by a part-time prospector and sheep farmer, John Ettien. When renowned Tiffany gemologist George F. Kunz first admired Montana sapphires in 1895, he declared them among the highest quality sapphires on earth. The most exceptional specimens possess a mesmerizing hue that mimics Montana’s legendary big sky. Kunz was so taken with his discovery that the stone took center stage at Tiffany’s world’s fair exhibitions in 1889 and 1900. The “cornflower blues” of Yogo Gulch attracted considerable attention and funding from both domestic and foreign mining companies. A British company controlled the mine for some thirty years, which is why Yogo sapphires can be found among the British Crown Jewels.Untreated Yogo sapphires are known for their excellent "cornflower blue" color and exceptional clarity; and many believe their natural qualities surpass heat-treated stones from all over the world. However, their primary drawback is their small size. Cut gems from Yogo Gulch are very rarely more than one carat in size.