◂ BACK TO GEM ENCYCLOPEDIA

Diamond

Diamonds are among nature’s most precious and beautiful creations.

Diamond
See Gem As

Research

2017 Vegas Outlook: Decent, But Cautious, Buying

Buyers at the 2017 JCK Show will likely stick to their open-to-buy plans, but take few chances on new lines or extra stock. Plus: An overview of retail sales, auction headlines.

Read more

Diamond History and Lore

Read more

Chow Tai Fook Expands Blockchain Initiative with GIA

Chow Tai Fook and GIA offer secure digital blockchain reports that document the diamond journey and grading information in one place.

Read more

Extraordinary Large Bicolor Natural Rough Diamond

A 37.41 ct natural rough diamond with distinct pink and colorless zones is examined at GIA’s Botswana laboratory.

Read more

GIA Tests the World’s Second Largest Diamond

360-degree video of the Motswedi diamond.

Read more

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

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

The Type IIb De Beers Cullinan Blue Diamond

GIA’s New York laboratory reports on a 15.10 ct (17.47 × 11.53 × 7.94 mm) Fancy Vivid blue cut-cornered rectangular step cut named the De Beers Cullinan Blue diamond.

Read more

New Record Size for CVD Laboratory-Grown Diamond

GIA’s New York laboratory reports a new record size for CVD laboratory-grown diamond.

Read more

Historical Reading List: Diamond and Carbonado from Brazil (Part 2)

Read more

Historical Reading List: Diamond and Carbonado from Brazil (Part 1)

Read more

GIA Researchers Evaluate ‘Light Performance’ and Diamond Cut

“Light performance” gets a lot of loose use in the diamond trade, but what does it mean when someone is actually looking at a diamond?

Read more

PreviousPage 2 of 23Next

You Might Also Like

YMAL AJP
AJP®: New 5-Day Program Offered Worldwide
Learn About NextGem
GIA NextGem™ Diamond Training for Retail
Explore GIA Laboratory Promotional Offers
Explore GIA Laboratory Promotional Offers
Shop the GIA Store
Shop the GIA Store