12:02

I cut the Montana Sapphire that my daughter found after getting it heat treated

8:12

Faceting a North Carolina ruby!

18:11

Turning a BLOB into PURE GOLD!

26:56

GRS Gemresearch Documentary: The Mozambique Ruby Collection - A Lifetime Experience

10:47

How To Clean Corundum Ruby and Sapphire Propst Farm

8:46

How To Make Synthetic Ruby In The Workshop

17:42

Heat Treating Montana Sapphire

8:39

Cutting a large rough opal into a ripper $12,000 Gem