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Emerald

Emerald is the bluish green to green variety of beryl, a mineral species that includes aquamarine.

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Color

Highly saturated green color defines high quality emerald.

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Beveled corners

Emerald cuts have concentric parallel rows of facets and beveled corners.

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“jardin,” or garden.

Eye visible inclusions create an internal scene referred to as “jardin,” or garden.

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Six-sided

Emerald crystals are commonly six-sided.

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Flat-top

The tops of emerald crystals are typically rather flat.

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Color direction

The best color is usually perpendicular to the top of the crystal.

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Tools

Research

A large group of people outside on GIA’s Carlsbad, California  campus.
Article
Guardians of Trust: GIA’s Innovative Research, Instruments and Services

GIA’s services and instruments have grown in importance and impact as new gem treatments and laboratory-grown gems enter the market.

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Emerald and diamond brooch.
Article
Jewels of Hollywood: Accessories and Jewelry that Made the Stars Shine

“Jewels of Hollywood,” on loan from the Kazanjian Foundation, showcases some of the jewelry and accessories associated with Hollywood royalty.

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A ruby and diamond choker. The center section is made of six strands of red pearls, framed by rubies and diamonds.
Article
Mughal Jewels Auction: Al-Thani Collection Raises $109 Million

Collectors from around the world descended on Christies’ Maharajas & Mughal Magnificence auction of the jewels from the Al-Thani Collection on June 19.

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Details of two engravings representing the treasury of Aachen Cathedral.
The Talisman of Charlemagne: New Historical and Gemological Discoveries

Reveals new details about this historical jewel and the results of its first gemological analysis.

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GIA field expedition team in Ethiopia
Land of Origins: A Gemological Expedition to Ethiopia

Documents a visit to the sapphire, opal, and emerald mining and trading areas of Ethiopia.

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A pile of near-colorless HPHT synthetic melee
Article
Diamond Market Forecast: Declining Credit, Soft Prices and Lab-Grown Diamonds

Despite the generally strong year for jewelry retail, the diamond industry continues to face problems with credit, spotty demand and soft prices.

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Gilson cat’s-eye synthetic emerald
Gilson Cat’s-Eye Synthetic Emerald

This Gilson synthetic emerald was of particular interest for its chatoyancy, produced by a network of primary flux inclusions.

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Emerald filled with epoxy resin
Emeralds Filled with Epoxy Resin: DiamondView Observations

“Blue flashes” seen with the DiamondView help to analyze the quantity and variety of emerald-filling substances.

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This Zambian emerald displays a highly saturated green color
Natural Emerald with Inclusions Along Three Directions

Guild Gem Laboratories examines a 10.48 ct sugarloaf emerald for identification and origin determination.

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Discussion panel on country of origin
Second World Emerald Symposium

Important topics such as sustainability, blockchain, nanotechnology, and traceability were discussed at the second World Emerald Symposium held in Bogotá.

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