19:54

Faceting a helenite gemstone.

12:33

Cutting gemstones, with someone who has no clue...

14:21

Uncut gem teaches not to be greedy - New opal cutting machine! (Cabking)

11:48

Cutting my own gemstone design in Blue Topaz

34:49

How to Make a Cabochon—A Complete Tutorial

7:13

Ideia incrível e dica em 7 minutos! Este segredo da metalurgia irá surpreendê-lo

8:39

I Cut a Raw 10 Carat Montana Sapphire Into a Beautiful Gemstone

14:48

Cabbing demo on the Hint of Stone flat lap