Article Search Results

Show Filters
Showing 215 results for "*"
1.15 ct round brilliant diamond
Chart: Inclusions in Natural, Synthetic, and Treated Diamond

Provides a visual guide to the internal features of natural, synthetic, and treated diamonds.

Read More

Sapphires from Australia

An overview of Australia's recent significance in the production of blue sapphire.

Read More

Parisite inclusion in emerald.
Chart: Inclusions in Natural, Synthetic, and Treated Emerald

Provides a visual guide to the internal features of natural, synthetic, and treated emeralds.

Read More

Micro-Features of Ruby
Chart: Inclusions in Natural, Synthetic, and Treated Ruby

Provides a visual guide to the internal features of natural, synthetic, and treated rubies.

Read More

Newly recognized mineral crowningshieldite in a diamond sample
Crowningshieldite: A New Mineral

A newly discovered mineral, crowningshieldite, was accepted on September 18, 2018, by the International Mineralogical Association.

Read More

Suggested Reading on Diamond Inclusions

Suggested Reading on Diamond Inclusions

Read More

Sapphires from Bingham Canyon (Utah) and Yogo Gulch
Gem Localities and Formation

Poster abstracts on “Gem Localities and Formation” from GIA’s 2018 International Gemological Symposium.

Read More

Mozambican ruby with signs of heat Treatment
Colored Stones and Pearls

Poster abstracts on “Colored Stones and Pearls” from GIA’s 2018 International Gemological Symposium.

Read More

FTIR spectrum and DiamondView images of type Ib-IaA diamond
Diamond Geology

Poster abstracts on “Diamond Geology” from GIA’s 2018 International Gemological Symposium.

Read More

Color distribution in nitrogen-doped CVD after irradiation and annealing
Diamond Identification

Poster abstracts on “Diamond Identification” from GIA’s 2018 International Gemological Symposium.

Read More