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Diamond

Diamonds are among nature’s most precious and beautiful creations.

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Research

De Beers Optimistic as Sales Revive; Luxury Houses Remain Cautious

De Beers has largest cycle (sight) in more than two years. Luxury sales have begun to rise again after a negative year.

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Emerging Designer Wins Grant to Create Ethical Brand

Designer’s frequent world travels laid a foundation of creative experimentation, design inspiration and social responsibility.

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Jewelry Sales Stay Flat for Season; High End Beats Trend

Retail had reasonable upturn during the holidays − but jewelry sales failed to grow. Plus: Diamond mining companies reconsider development projects.

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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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Jewelers Seek to Overcome Weak Numbers in 2016 Holiday Season

Year-end forecasts remain mixed, but a strengthening U.S. economy and good store/cyber traffic have been encouraging in the early holiday season.

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Is Another 1,000 (or 3,000) Carat Diamond Around the Corner?

Find out why the number of very large diamonds entering the market has increased sharply in the last few years.

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Diamond Growth from C–H–N–O Recycled Fluids in the Lithosphere: Evidence from CH₄ Micro-inclusions and δ¹³C–δ¹⁵N–N Content in Marange Mixed-habit Diamonds

Article was published in Lithos Volume 265, 68-81.

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Blue Nile Sale Surprises Analysts, Argyle Auctions ‘Best’ Colors

The deal will likely mean big changes for the online diamond retailer. Plus: Rio Tinto offers record quality of fancy color diamonds.

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Fall 2016 G&G: CVD Synthetic Diamonds Survey, Reversible Color Change in Blue Zircon

A summary of the content found in the Fall 2016 issue of Gems & Gemology.

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Fluid CH4 and H2 Trapped Around Metallic Inclusions in HPHT Synthetic Diamond

Article published in Diamond and Related Materials, Volume 68, 2016, Pages 10–12

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Diamond Quality: A Short History of the 4Cs

You’ve heard about the 4Cs of diamond quality (color, clarity, cut, carat weight). But how did they become so well-known? Here’s a little diamond history.

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Type Ib Diamond Formation and Preservation in the West African Lithospheric Mantle: Re–Os Age Constraints from Sulphide Inclusions in Zimmi Diamonds

Article published in Precambrian Research 286, 152-166.

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