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A large piece of rough diamond sits on some rocks.
Article
2018: A Good Year for Finding Mega-Diamonds

The three diamond mining companies that specialize in digging up large stones have found some really big ones during the first quarter of the year.

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Demand was brisk at the 2018 AGTA show in Tucson.
Tucson 2018 Overview

An overview of the 2018 Tucson gem shows.

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This inclusion scene showing a growth blockage and thin-film rosette within a Sri Lankan sapphire was enhanced by modified Rheinberg illumination.
Jonathan Muyal Named Gem-A's Photographer of the Year

Carlsbad-based G&G contributor takes top honors in Gem-A's annual photography competition.

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GemoAid’s new Universal Microscope Upgrade Kit.
Universal Microscope Upgrade Kit

A review of an upgrade kit that maximizes the use of a gemological microscope.

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Small unheated spinel and sapphire exhibited by Madagascar Imports
Unheated and Unusual Colors

Margit Thorndal of Madagascar Imports offers her perspective on the colored stone market.

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A 24.96 ct sphene from Zimbabwe (left) and sillimanites from Sri Lanka and Myanmar (right)
Vibrantly Colored Gems

Bill Larson of Pala International reports a very strong AGTA Tucson show.

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Update from the Responsible Jewellery Council

Edward Johnson and Anne-Marie Fleury discuss the status of RJC's efforts to update its existing standards.

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Gem inventory at Tucson
Tucson 2015

A summary of the findings at Tucson’s 2015 gem shows.

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Crowds mingle on the Baselworld 2018 show floor.
Article
Smaller 2018 Basel Fair is Still Biggest Rare Gem Showcase

Business at the scaled-down Baselworld 2018 Show was spotty. Some jewelry brands and gem dealers had respectable sales, but others found slow trading.

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A 2.11 carat radiant shaped Fancy red diamond  in a spotlight
Article
Is the Swan Song for Argyle Pink Diamonds Close at Hand?

The flow of Argyle fancy pink diamonds may end in 2020 if prices for the other stones the mine produces don’t improve. Plus: More diamond updates.

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