News & Articles

Recent Articles
Jeweled Splendors of the Art Deco Era: The Prince and Princess Sadruddin Aga Khan Collection Book Cover

Book Review: Jeweled Splendors of the Art Deco Era: The Prince and Princess Sadruddin Aga Khan Collection

Sharon Elaine Thompson, January 11, 2018

Review of Jeweled Splendors of the Art Deco Era: The Prince and Princess Sadruddin Aga Khan Collection by Sarah Davis

Read More
Blue sapphires

An In-Depth Gemological Study of Blue Sapphires from Pailin, Cambodia

Sudarat Saeseaw, Supharart Sangsawong, Wim Vertriest, and Ungkhana Atikarnsakul , December 22, 2017 Topics: Ongoing Research

A report from GIA Laboratory in Bangkok analyzing 68 blue sapphires from Pailin, Cambodia.

Read More
Sixteen samples of facet-quality ruby

Preliminary Observations on Facet-Grade Ruby from Longido, Tanzania

Boodsakorn Kongsomart, Wim Vertriest, and Vararut Weeramonkhonlert, December 15, 2017

Microscopic observation and trace element analysis is performed on rubies from Longido.

Read More
A 2.11 carat radiant shaped Fancy red diamond  in a spotlight

Pre-Holiday Gem Orders ‘Encouraging,’ Mixed Results for Auctions

Russell Shor, December 11, 2017

Demand good for affordable quality, high-end stones. Plus: Mixed results for first fall auctions.

Read More
Secrets of the Gem Trade Book Cover

Book Review: Secrets of the Gem Trade, Second Edition

Tao Hsu, December 1, 2017

Review of Secrets of the Gem Trade, Second Edition by Richard W. Wise.

Read More
A 14.93 ct oval pink diamond is surrounded by a halo of colorless diamonds and mounted into a ring.

Retail Group Sees Good Holiday; Fancy Color Diamonds Cap Auction Season

Russell Shor, November 13, 2017

Strong economy and rising confidence in employment/wages should lead to increased holiday spending.

Read More
View All Recent Articles

Tips From the Bench
How to Modify a Goldsmith Hammer

Compiled by GIA’s Jewelry Manufacturing Arts Instructors
 

Read More
Library
The First Point of Reference for Gems and Jewelry

Located on GIA's Carlsbad campus, The Richard T. Liddicoat Gemological Library and Information Center is the largest, most complete library of its kind.

Learn More

You Might Also Like

Find a Retailer
learn more
Shop the Campus Store
Learn More
Quality Assurance Benchmarks
Learn More
Gems & Gemology
G&G Fall 2017 Edition
Learn more