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Provides diamond grading services featuring grading of the diamond cut.
http://www.agslab.com/
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Distributes a range of jewelry, silversmith tools, lapidary supplies, and related equipment.
http://www.bernieslapidary.com/
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Lapidary tools including saw blades, carving burrs, diamond powders, flat laps, and more.
http://www.lopacki.com/
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Prospecting, lapidary, and backpacking gear and equipment.
http://www.desertoutfitters.com/
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Specializes in origin of color determination for fancy colored diamonds using Raman spectrometer.
http://www.gemlab.net/
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