Back to gem encyclopedia

Fancy Color Diamond

Dazzling brilliance. Captivating color. The planet’s most valued gems are fancy color diamonds.

See gem as
Polished
Rough

Tools

Research

Natural-Color D-to-Z Diamonds: A Crystal-Clear Perspective

Sally Eaton-Magaña, Troy Ardon, Christopher M. Breeding, and James E. Shigley, January 22, 2021

Examines a very large dataset of colorless to near-colorless diamonds submitted to GIA and evaluates their diamond type and spectroscopic properties.

Naturally Colored Yellow and Orange Gem Diamonds: The Nitrogen Factor

Christopher M. Breeding, Sally Eaton-Magaña, and James E. Shigley, October 22, 2020

Presents the four major groups of defects responsible for the color in nearly all yellow and orange diamonds.

Diamond with Mobile Green Diamond Inclusion

Nathan Renfro and John I. Koivula, July 22, 2020

Green octahedral diamond crystal inclusion freely moves inside a negative crystal contained in the colorless host diamond.

Article

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

Russell Shor, March 9, 2020

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

A large yellow cushion cut diamond pendant is partially framed with marquis cut diamonds and hangs from a necklace of mixed cut diamonds.

Article

Yellow Gemstones: Can You Identify Them?

Sharon Bohannon, March 9, 2020

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.

Article

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

Amanda J. Luke, February 10, 2020

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

Two people walk past a Kay Jewelers storefront.

Article

Jewelry Sales Show Modest Rise; Higher End Soars

Russell Shor, January 10, 2020

U.S. holiday jewelry sales increased slightly from 2018. Online buying surged, while foot traffic in retail stores slowed.

Article

2019 in Review: Diamond Trade Begins Recovery, Jewelry Retail Blooms Late, Extraordinary Auction Sales

Russell Shor, December 16, 2019

2019: A year of ups and downs in the gem and jewelry industry, including diamonds, retail, auction sales and laboratory-grown diamonds.

A face-up view of a cushion cut diamond with blue color.

Article

Gems & Gemology’s 7 Most Unusual Encounters from 2019

Stuart Overlin, Brooke Goedert and Kellie Giordano, December 13, 2019

Check out some of the most interesting and unusual diamonds and colored stones submitted to GIA’s laboratories in 2019.

A rectangular cut Fancy Deep blue diamond is framed by two pear shaped diamonds.

Article

Diamond Market in Recovery, Top-end Auction Results

Russell Shor, November 19, 2019

World’s two largest diamond producers say market is stabilizing after several months of severe cutbacks in rough sales. Christie’s and Sotheby’s sales.

This Month's

Featured Gems

Peridot

Found in lava, meteorites, and deep in the earth’s mantle, yellow-green peridot is the extreme gem.

Fancy Color Diamond

Dazzling brilliance. Captivating color. These are the planet’s most valued gems.

Diamond

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

Emerald

Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.

Citrine

Citrine is the transparent, pale yellow to brownish orange variety of quartz.

View the Gem Encyclopedia

Fancy Color Diamond

Research

Reviewed

Topics

Topics

Gemstones

Gemstones

Featured Gems

Peridot

Fancy Color Diamond

Diamond

Emerald

Citrine

Fancy Color Diamond

Research

Reviewed

Topics

Topics

Gemstones

Gemstones

Featured Gems

Peridot

Fancy Color Diamond

Diamond

Emerald

Citrine

You Might Also Like

Find a Retailer

Shop the Campus Store

Subscribe to Knowledge Rocks Emails

G&G Fall 2020 Edition