27:07

Real Ethiopian Opal gemstone guide

1:19:06

$1.6 Million Emeralds at Gemshow in Bangkok Thailand!

53:20

Making purple gold

57:00

Day 1 PART 2 Hong Kong gemstone show | meeting GRS founder Dr. Peretti

55:46

Luxury Jewelry Network (NEW)

46:48

Three Precious Gems: Rubies, Emeralds, Sapphires

20:07

Cutting a Massive Gemstone Over 1000 Carats! How I Facet This Jumbo Quartz

56:04

DAY 4 at the gem and jewelry show in Bangkok Thailand