News & Articles

Gems & Gemology Winter 2023 In Brief
Winter 2023 G&G Available Now

An overview of the Winter 2023 Gems & Gemology content.

Read More
Gems & Gemology Fall 2023 In Brief
Fall 2023 G&G Available Now

An overview of the Fall 2023 Gems & Gemology content.

Read More
Figure 1. The 4.04 ct ring fashioned from a single-crystal CVD diamond. Photo by Towfiq Ahmed.
Solid Laboratory-Grown Single-Crystal Diamond Ring

The quality and size of this 4.04 ct CVD-grown diamond ring demonstrate the advancing technology in laboratory-grown diamonds.

Read More
Gems & Gemology Summer 2023 In Brief
Summer 2023 G&G Available Now

An overview of the Summer 2023 Gems & Gemology content.

Read More
Gems & Gemology Spring 2023 In Brief
Spring 2023 G&G Available Now

An overview of the Spring 2023 Gems & Gemology content.

Read More
Figure 1. This 34.59 ct CVD-grown diamond (24.94 × 13.95 × 9.39 mm), produced by Ethereal Green Diamond in India, is the largest GIA has tested. Photo by Johnny (Chak Wan) Leung.
CVD Diamond Over 34 Carats Examined in GIA’s Hong Kong Laboratory

A look at the largest CVD diamond GIA has encountered to date.

Read More

View All Recent Articles