News

Spiral structure in a Colombian emerald
Happy Birthday, GemAlliance
Insight

Happy Birthday, GemAlliance!

Read
A "Maltese Cross" pattern seen in a natural diamond viewed with GGTL DFI System
Insight, Micrographs

A "Maltese Cross" pattern seen in a natural diamond viewed with GGTL DFI System

Read
GGTL Certificates
Insight

From now, all GGTL reports will be exclusively in English.

Read
CO2 diamond slice, SGDF-5864, under UV excitation (220 nm). Micrograph Dr. T. Hainschwang
Insight

Conference on replay: Brown Diamonds, a new in-depth look at their properties and classification

Read
Brown Diamond
Insight

Webminar: Brown diamonds - A new in-depth look at their properties and classification

Read
1K followers on Instagram
Insight

1K followers on Instagram

Read
Welcome sign and Mogok seen from the view point.
Insight

Mogok : The Valley of Precious Stones

Read
GemAlliance welcomes its 5th member: the LFG
Insight

GemAlliance welcomes its 5th member: the LFG

Read
GemAlliance welcomes its 4th member: the JGGL
Insight

GemAlliance welcomes its 4th member: the JGGL

Read
AIGS & GGTL announce the launch of GemAlliance
Insight

AIGS & GGTL announce the launch of GemAlliance

Read