◂ BACK TO GEM ENCYCLOPEDIA

Diamond

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

Diamond
See Gem As

Research

The Curious Life of Patrick O’Shea: From Ballistics Detective to Gemologist and Jewelry Designer

Patrick O’Shea’s life’s journey has led him down many career paths until they all came together as a designer who specializes in masonic jewelry.

Read more

GIA Researchers Reveal the Secrets to Diamond-in-a-Diamond Mystery

GIA researchers in NY recently had the opportunity to examine one of the most interesting and unique diamond crystals ever found.

Read more

What Country Do My Diamonds and Other Gemstones Come From?

Dr. James Shigley shares how GIA determines colored stone origin and the mysteries of diamonds origin.

Read more

Diamond Lattice Defects: GIA Researchers Explore Internal Tagging and Gray-Blue-Violet Diamond Color

GIA scientists recently presented their latest research on diamond tagging and the cause of gray-blue-violet color in diamonds.

Read more

Coronavirus May Cut Chinese Demand, Diamond Companies See Better Times

Economic impact of the coronavirus. Plus, an update on the diamond market and gold jewelry.

Read more

A Look Back — and Forward — After 40 Years in the Gem and Jewelry Industry

Russell Shor reflects on the people, gems and stories he’s encountered as he’s covered the industry over the years.

Read more

Yellow Gemstones: Can You Identify Them?

Don’t judge a yellow gem by its color alone. A variety of gemstones also come in shades of yellow, from diamonds to citrine to garnets.

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

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

Diamonds Are Not Forever! Diamond Dissolution

Violent kimberlite eruptions impact the surface features of diamonds, which can give scientists useful information about how diamonds react with the fluids in the mantle.

Read more

Pallasitic Peridot with Iridescent Needle-Like Inclusions

Numerous needle-like inclusions exhibit vibrant interference colors in a suite of pallasitic peridot from the Jepara meteorite.

Read more

Diamond with Mobile Green Diamond Inclusion

Diamond inclusions are relatively common guests in diamond crystals.

Read more

PreviousPage 13 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