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The 14.62 ct. emerald cut Fancy Vivid Blue Oppenheimer diamond is flanked by diamonds in a ring setting.

Spring 2016 Auction Update: Big Checks – Mega Diamonds

Russell Shor, May 23 Topics: Carat Weight, Pricing, Trade

Big diamonds – really big ones – dominated the news in May, setting sales records for colorless and colored beauties.

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The Eduard Josef Gübelin Story Book Cover

Book Review: The Eduard Josef Gübelin Story: The Art and Science of Gems

Robert E. Kane, May 18

Review of The Eduard Josef Gübelin Story: The Art and Science of Gems, by The Gübelin Group.

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Dealers holding beads

The Creation and Business of Beads

Andrew Lucas, Nirupa Bhatt, Manoj Singhania, Kashish Sachdeva, Tao Hsu, Pedro Padua, May 13

Jaipur, India, is a leading bead manufacturing and trading center for the global gem and jewelry industry. Visit a bead manufacturing factory with the GIA field team to see how all types of beads are made and how the bead business works.

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3-D modeling software for pearls

New 3-D Software Expands GIA’s Pearl Identification Capabilities

Chunhui Zhou, Emiko Yazawa, and Nicholas Sturman, May 13

GIA’s 3-D modeling software is a powerful research tool for exploring and reconstructing the internal features of a pearl.

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187.66 “cape” diamond from the Diavik mine

Examination of the Largest Canadian Diamond

John King, Kyaw Soe Moe, and Wuyi Wang, May 12

GIA examines a 187.66 ct pale yellow diamond from Diavik, the largest rough diamond ever found in Canada.

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Five people stand in a row for photo.

Gem Lovers Converge on Tucson 2016 for Treasures, Reunions

Amanda J. Luke, May 5

Gem and mineral fairs take over the city of Tucson each February. It’s a favorite spot to find old favorites and new discoveries – gems and people.

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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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