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16 de mai. de 2024 · Miner and dealer Miriam Kamau discusses her entry into the gem trade and her current mining activities in Kenya. As she seeks to bring added value to the local miners, her own business has expanded. She now has her own tsavorite mine in Kenya. She informed us that the mine’s operation tunnel is about 90 feet deep, and the first extractions ...
Há 2 dias · Nigerian sapphires are typically dark blue, although goods found in the southeastern part of the country tend to be lighter in color. Parti-colored, yellow, purplish, and green sapphires are also common. Figure 2. This necklace makes use of the Arewa knot, a symbol of unity. Photo by Kevin Schumacher.
Há 5 dias · Figure 1. Left: This 4.37 ct unheated bicolor sapphire from the Potentate mine in Montana features Jeff Hapeman’s signature Helena cut. Courtesy of Jeffrey R. Hapeman, Earth’s Treasury. Right: A 4.57 ct heated blue sapphire from Potentate. Photo by Kevin Schumacher. Jeff Hapeman of Earth’s Treasury (Westtown, Pennsylvania) loves a ...
Há 1 dia · Garnets are a set of closely related minerals that form a group, resulting in gemstones in almost every color. Red garnets have a long history, but modern gem buyers can pick from a rich palette of garnet colors: greens, oranges, pinkish oranges, deeply saturated purplish reds, and even some blues. Red garnet is one of the most common and ...
Há 3 dias · Trapiche Gems. Wim Vertriest. Download PDF. Figure 1. A pair of trapiche emerald slices from Colombia, 10.92 carats total. Photo by Kevin Schumacher; courtesy of Mayer & Watt. Jeffery Bergman is known in the trade as a collector of trapiche gems. These gems, characterized by their six-rayed patterns, are elusive and seldom found in high quality.
Há 4 dias · Thoughts on the Chinese and Japanese Gem Markets. Figure 1. Paraíba tourmaline, such as this 3.71 ct pear-shaped stone, was popular in Japan when Shahin entered the gem trade. Photo courtesy of SR Trading. At the Tucson shows, Shahin Aboosalih, director of SR Trading, spoke to us about his path to the gemstone and jewelry industry and his ...
Há 4 dias · Topaz Description. This selection of gems from Ouro Prêto, Brazil, and Russia's Ural Mountains, displays the golden orange to pinkish red color range of precious topaz. The gems range from 7.61 to 14.33 carats in size. Many consumers know topaz as simply an inexpensive blue gem.
