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A close-up image of a pile of rough diamonds.
Article
Ups and Downs of 2016 Make for an Uncertain 2017

The diamond industry was slow to recover in 2016 and colored gems got a welcome shot in the arm. Mixed signals leave no clear indicators for 2017.

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Article
De Beers Reduces Rough Prices – Too Little?

De Beers reduces rough prices at May sight, undisclosed treated diamonds submitted to GIA and Sotheby’s, Christie’s sales break auction records − again.

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Article
De Beers’ Sight Highlights Market Disarray

The results of the final De Beers’ sight for goods destined to be sold for Christmas were affected by manufacturers who had little appetite for rough that could not be cut profitably.

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This 1,111 carat rough unearthed in Botswana last year will be sold by Sotheby’s later this year. Courtesy of Lucara Diamond
Article
Better Than Expected: Hong Kong Demand Buoys Market

Encouraging demand at the March Hong Kong Gem and Jewellery Show has buoyed the industry’s mood.

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Indian necklace
Article
Jewelers to the Maharajas of Jaipur and Modern-Day Moguls

Enter a world not well-known in the West—the world of the maharajas and their jewelry, coveted by the modern-day moguls of business, entertainment, and royalty. See the fantastic works of art made today in the form of enameled Kundan meena jewelry and the regal look of polki diamonds.

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Colored Gems – Mine to Market
Article
Mine to Market: The ‘Adventure Story’ of Colored Stones

A GIA team travels the world to discover and document what happens as colored gems travel from mine to market.

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Worker attaching wax forms
Article
Shenzhen: The Frontier of China’s Gem and Jewelry Industry

All jewelry professionals are familiar with the city of Shenzhen, a global jewelry manufacturing center and a leader of China’s fast-growing gem and jewelry industry. Join the GIA team as we tour the city and discover more about its leading jewelry brands.

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Ruby and Sapphire Production and Distribution: A Quarter Century of Change
Ruby and Sapphire Production and Distribution: A Quarter Century of Change

During the past 25 years, the corundum market has been transformed from one of medium to high-priced gems to one that encompasses nearly all price ranges.

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Synthetic Rubies by Douros: A New Challenge for Gemologists

Greek manufacturer J. & A. Douros introduced a new flux synthetic ruby in early 1993.

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The Chanthaburi-Trat Gem Field, Thailand

Thailand has become the world's major source of gem ruby.

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