News & Articles

Recent Articles

Identifying Lab-Grown Diamonds

Dr. James E. Shigley, Jul 25

Dr. James E. Shigley describes the means of distinguishing colorless and colored synthetic gem-quality diamonds from natural diamonds.

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Book Review: Graff Book Cover

Book Review: Graff

Jana Smith, Jul 15

Review of Graff, by Suzy Menkes, Vivienne Becker, Maria Doulton, Joanna Hardy, Nina Hald, Nicholas Foulkes, and Joanne Harris.

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Diamond under a loupe

Gem Buyers Beware: Get Rich Quick Scams

Russell Shor, Jul 15 Topics: Education, Trade

Think twice before investing your savings in diamonds and gems − it just may be a scam. Learn how scammers operate and how to protect yourself.

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Why Didn't That 1,109 Carat Diamond Sell?

Russell Shor, Jul 15

The failure of the second largest gem quality diamond to find a buyer at a well-publicized public auction on June 29, 2016 touched off a great deal of speculation.

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A 24.18 ct. cut-cornered, rectangular, mixed cut Fancy Intense blue diamond flanked with tapered baguette-cut diamonds.

A Vivid Spring 2016 Auction Season: Sales Totals Near $800 Million

Russell Shor, Jul 7 Topics: Trade

The spring 2016 auction season was one for the record books, achieving nearly $800 million in sales between March and July and featuring the costliest gemstone ever to be sold at a public sale.

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Minerals of Georgia: Their Properties and Occurrences Book Cover

Book Review: Minerals of Georgia: Their Properties and Occurrences

Guy Lalous, Jul 1

Review of Minerals of Georgia: Their Properties and Occurrences, 2nd ed. by Robert B. Cook and Julian C. Gray.

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Tips From the Bench
How to Modify a Goldsmith Hammer

Compiled by GIA’s Jewelry Manufacturing Arts Instructors

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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.

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