Skip to main content
Navigation principale
About us
Services
Main services
Diamond services
Gem services
Pearl services
Exclusive services
Recovery of melee diamonds
Cleaning & oiling of emeralds
Coral species identification
Cullinan report
Consulting
Products
News
Contact
en
fr
News
Spiral structure in a Colombian emerald
Select category
- Any -
Insight
Micrographs
Research
Apply
Insight
10.05.2024
GGTL Laboratories Switzerland visiting presence at GemGenève
Read
Insight
26.04.2024
40th Anniversary of the first DUG Diploma
Read
Insight
11.04.2024
GGTL Laboratories Switzerland visit at Watches & Wonders
Read
Insight
20.03.2024
Discover the issue 3 of GEMMES: Celebrating spring and francophonie!
Read
Insight
25.09.2023
GGTL Laboratories Switzerland is looking for: Melee diamond grader
Read
Insight
17.12.2020
Happy Birthday, GemAlliance!
Read
Insight, Micrographs
01.11.2020
A "Maltese Cross" pattern seen in a natural diamond viewed with GGTL DFI System
Read
Insight
02.10.2020
From now, all GGTL reports will be exclusively in English.
Read
Insight
25.04.2020
Conference on replay: Brown Diamonds, a new in-depth look at their properties and classification
Read
Insight
21.04.2020
Webinar: Brown diamonds - A new in-depth look at their properties and classification
Read
Insight
04.04.2020
1K followers on Instagram
Read
Insight
01.07.2019
Mogok : The Valley of Precious Stones
Read
Pagination
Current page
1
Page
2
Next page
Next ›
Last page
Last »
Navigation SM
About us
Services
Main services
Diamond services
Gem services
Pearl services
Exclusive services
Recovery of melee diamonds
Cleaning & oiling of emeralds
Coral species identification
Cullinan report
Consulting
Products
News
Contact
en
fr