News & Articles

A blue diamond with inclusions under the table is held up in tweezers.
Where Do Blue Diamonds Come From?

Blue Diamonds Have a Surprising “Superdeep” Origin and a Link to Ancient Oceans

This is an extended abstract of the article ‘Blue boron-bearing diamonds from Earth’s lower mantle,’ published in the 2018 August issue of Nature. GIA Researcher Evan Smith is the lead author of the article.

Read More
A woman and man sit at a table to look at GIA Retailer Support materials.
GIA Resources Give Retailers an Edge in Customer Education

The GIA Retailer Support Program tools help guide consumers through the jewelry buying process so they can make informed and confident purchases.

Read More
Close-up shot of 18K yellow gold, emerald, enamel and diamond lariet suite, inclusing ring, lariet, pendant and earrings.
GIA Scholarship Helps Designer Build Technical Skills, Creativity

JDT program gives designer the skills and techniques – and freedom – to create the designs that move past the trends.

Read More
A pile of rough diamonds of various colors.
Robust Demand Brings Increased Rough Diamond Sales

Demand for diamonds has been good so far this year. Rough sales have increased and large diamonds are being mined. Plus: Online sales tax changes.

Read More
A large blue pear shaped diamond hangs from a colorless and pink diamond.
Rockefeller and Fancy Blues Highlight Spring 2018 Auctions

Rockefeller jewels and fancy blue diamonds are the stars of the spring 2018 auction season.

Read More
Bursts of yellow and purple radiate throughout this round cut amertrine.
Colorblocking: The Art and Fashion of Multicolor Gemstones

The fashion trend of colorblocking can be found in the artistic combinations of color in multicolor gemstones known for their color zoning or banding.

Read More

View All Recent Articles