Последние добавленные видео:
gem-tester-machine
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6 years ago
216270 6 years ago 18:24Presidium Gem Tester II (PGT II) - Testing Emerald, Diamond, Sapphire, Ruby, Nephrite
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3 years ago
166692 3 years ago 3:37Diamond Selector 2 II Diamond Tester From AMAZON - Demo How To Use and Test For Diamonds
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2 days ago
449 2 days ago 24:181983 Toyota Corona Review: Why This Kuwait Import is a Hidden Gem!
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9 months ago
2746 9 months ago 9:43Can You Identify Jade with a Presidium Gem Tester?
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5 years ago
26595 5 years ago 2:13GIA iD100® Gem Testing Device
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2 years ago
19416 2 years ago 2:45testing if a “gemstone” is REAL (presidium gem tester 2) review
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2 years ago
89566 2 years ago 5:51The Most Essential Gem Tools You Should Own
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8 months ago
20397 8 months ago 3:21GemTrue Diamond Selector II – Affordable, Accurate, and Portable Gem Testing!
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4 years ago
23493 4 years ago 1:14Presidium Gem Tester II (PGT II) - Assisted Thermal Calibration
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4 years ago
23028 4 years ago 1:12Presidium Gem Tester II (PGT II) - Performing a test and Reading Results
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10 years ago
40710 10 years ago 1:41How to Perform a Test Using the Presidium Gem Indicator (PGI)
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3 years ago
517645 3 years ago 4:49NEVER Trust A Diamond Tester... Here's Why (Scam Alert)
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3 years ago
13147 3 years ago 34:57New Gemstone Tester, Gemlogis Mantis & BLEU Gemstone Meter. Is it Better than the Presidium?