How to Identify #Diamond #Rough by Rubbing it on a Grinding Stone. शान पत्थर पर घीस कर #हीरा पहचानें
20:07
Cutting a Massive Gemstone Over 1000 Carats! How I Facet This Jumbo Quartz
5:47
Story of this unfortunate diamond | इस अभागे हीरे की कहानी | Natural diamond V/S Lab-Grown diamond.
16:36
INACREDITÁVEL PEDRA QUE TIREI DO BARRANCO PARA LAPIDAR
21:03
Grinding into this uncut rough opal the gems emerged
17:31
Faceting Another Massive Quartz Over 1000 Carats in a Square Cut!
35:58
कभी हीरे का बाज़ार देखा है? | Tour through a diamond market!
12:53
100 carat rough opal fresh out of the mine gets cut
14:27