Share your videos with friends, family, and the world
Diamond Tester Gemstone Selector II Gems LED Indicator Jewelry
Gem Tester II: Quick Diamond/Moissanite Identification & Colored
Presidium Gem Tester II Review and how to use it testing stones at home
Presidium Gem Tester II Review and how to use it testing stones at home
Let's Test Gemstones! Presidium Gem Tester II (PGT II) - Testing
Presidium Gem Tester II - Assisted Thermal Calibration (For #PTG111425 and after)
How To Test Amethyst Gemstone With Diamond Selector II Tool (Episode 1)
Presidium RI Meter
New Gemstone Tester, Gemlogis Mantis & BLEU Gemstone Meter
NEW PRESIDIUM PGT II Gem Tester Colored Stones and Diamond
Presidium Gem Tester II PGT II Diamonds/Moissanites and Colored
Presidium Tester - Differentiates Moissanite, Diamonds, Ruby
Help with identification - Gem Related Discussion - IGS Forums