[Gemstone Secrets] How to Avoid Glass and Acquire Gems
17:17
Gemology Tools: What Do I Buy, When?
15:08
Unboxing a Gemologist's Spectroscope
7:59
Making Money with Gemstones
9:47
Gem Identification - Refractometer Basic Use
9:29
Glass Filled Gems: Zombie Crystals [Treatments]
12:22
What is this Mystery Stone?
6:35
A Sapphire's Secrets [In the Loupe]
9:48