Back to IGS | FAQ | Contact
12ct Red Diamond [For Sale] (2)
Which certificate? [Gem Related Discussion] (3)
New thread: Simpsonite [For Sale] (2)
Color change Tourmaline Usambara [Gem Related Discussion] (9)
Tanzanite from Africa [For Sale] (5)
Has anyone tried to use the digital refractometers [Gem Related Discussion] (7)
For sale gemstones [For Sale] (1)
Sphalerite? [Gem Related Discussion] (4)
Identify me [Gem Related Discussion] (5)
Setting a new minimum for quality inclusion. I give you gem quality Baddeleyite [Gem Related Discussion] (4)
Grading Gem Carvings Article [Gem Related Discussion] (1)
Buying Gemstones Online - Safe or Unsafe? ( 2 ) [Gem Related Discussion] (22)
Having trouble trying to find out what this is worth [Gem Related Discussion] (7)
Identify this gem for me, please [Gem Related Discussion] (12)
Seeking info re Amber trade around the 9th century? [Gem Related Discussion] (2)
Laser Drilled Diamonds [Gem Related Discussion] (4)
Identify gemstones [Gem Related Discussion] (5)
For Jewelry Manufacturer and Gemstones Traders [For Sale] (1)
"no name" refractometer [Gem Related Discussion] (11)
Question about unknown RI Fluid [Gem Related Discussion] (10)
2005 Facetron and equipment/supplies for sale [For Sale] (2)
Jeff Graham Stones [Gem Related Discussion] (1)
I started a new show called World of Faceting Machines [Gem Related Discussion] (2)
5.5 carat Emerald dilemma ( 2 ) [Gem Related Discussion] (29)
Loose gem stone buyers [For Sale] (4)
Buying ethically cut cabochons [For Sale] (3)
Mineral, Crystal or Glass [Gem Related Discussion] (7)
Gem A travel microscope [For Sale] (4)
IGS Practical Exam [Gem Related Discussion] (5)
Blue flawless Powellite for trade [For Sale] (2)