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GIA has developed a sophisticated and easy-to-operate desktop instrument to screen for these stones
A*F Swiss - Set of 4
In "soft" synthetic material
lacquer adds a traditional look and subsequently raises the value to the piece
repeatable
Presidium Gem Computer Gauge Gemoro Auracle Agt1 Plus Electronic Gold & Platinum Tester GIA has developed a sophisticatedA convenient digital gauge that measures actual gemstone dimensions and estimates gemstone weight and identity. The Presidium Gem Computer Gauge (PGCG) is extremely useful For identifying unknown stones simply by measuring them. The SG (specific gravity) is automatically calculated from the dimensions and a list of gemstones with that SG measurement is presented. Can identify 74 different gemstones in 9 different shapes It is the only gauge in the
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