News

Spiral structure in a Colombian emerald
Cavity filling (C2) in a ruby from Mong Hsu in Myanmar
Micrographs

Cavity filling (C2) in a ruby from Mong Hsu in Myanmar

Read
Elongated biotite crystal inclusion with interface light interference, Aquamarine, Madagascar
Micrographs

Elongated biotite crystal inclusion with interface light interference, Aquamarine, Madagascar

Read
rutile needles partially altered in a Ruby from Mogok (TE2)
Micrographs

Rutile needles partially altered in a Ruby from Mogok (TE2)

Read
Genève
Insight

GGTL Laboratories Switzerland visiting presence at GemGenève

Read
Fibro-radiated crystallisation of Willemite Zn2SiO4 coloured by cobalt on the surface of a glaze
Micrographs, Research

Fibro-radiated crystallisation of Willemite

Read
The city of Nantes
Insight

40th Anniversary of the first DUG Diploma

Read
inclusion of an orange pyrope almandine garnet crystal in a diamond
Micrographs

Inclusion of an orange pyrope almandine garnet crystal in a diamond

Read
GGTL Laboratories Switzerland at Watches & Wonders
Insight

GGTL Laboratories Switzerland visit at Watches & Wonders

Read
Couverture du magazine Gemmologie et Francophonie
Insight

Discover the issue 3 of GEMMES: Celebrating spring and francophonie!

Read
Automorphous phenacite crystals in a synthetic emerald
Micrographs

Automorphous phenacite crystals in a synthetic emerald

Read
Automorphous margarite crystals in an unheated ruby from Mozambique
Micrographs

Automorphous margarite crystals in an unheated ruby from Mozambique

Read
"Platelets" in an aquamarine
Micrographs

"Platelets" in an aquamarine

Read