Presidium® Gem Tester II Colored Stones Diamond Testing Machine
THE ALL-NEW Presidium® Gem Tester II
The most trusted and sought-after colored gemstone tester has been redesigned with the user in mind to be more compact, sturdy and portable.
The Presidium Gem Tester II (PGT II) provides users with a quick and easy way to identify diamonds/moissanites and separate up to 15 common colored gemstones based on their thermal properties.
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