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Named after seawater, aquamarine’s fresh watery hue is a cool plunge into a refreshing pool.

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Emerald Cut

This 3.36-ct. gem is an emerald cut, which is typical for aquamarine.

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Sea Blue

Aquamarine’s most valuable color is a dark blue to slightly greenish blue.

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High Clarity

Like all fine aquamarines, this gem is free of eye-visible inclusions.

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Mineral Specimen

This fine 3x3x7 cm aquamarine mineral specimen is from Balistan, Pakistan

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Columnar Form

The crystal shows aquamarine’s typical six-sided columnar form.

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Pencil Point

A collector might call this crystal a “pencil” due to the faces at its tip.

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Figure 1. A 41.51 ct freeform faceted bicolor beryl. Photo by Marina Boncompagne.
Unusual Aquamarine–White Beryl

An interesting bicolor beryl specimen composed of aquamarine and white beryl reportedly from Bahia, Brazil, is examined.

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This 9.885 kg specimen of aquamarine on albite with a quartz cathedral center, measuring 31 × 23 × 28 cm, is from Pakistan’s Shigar Valley. Courtesy of GIA Museum, collection no. 43068. Photo by Robert Weldon.
Micro-Features of Beryl

Provides a visual guide to the internal features of different varieties of beryl.

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Figure 1. A 55 ct cushion-cut aquamarine exhibiting a distinct light bluish green and deep blue pleochroism using a dichroscope. Photos by Kaiyin Deng; courtesy of Farrugia Gem.
Aquamarine with Zigzag Growth Line Inclusions

Zigzag lines are observed only with oblique light in a 55 ct aquamarine.

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Figure 1. Hematite inclusions extend from the center of an aquamarine sample from Xinjiang, China. Photomicrograph by Yubing Chen; field of view 3.64 mm.
Internal World of Aquamarine from Xinjiang

Various inclusions are observed in a batch of aquamarine samples from Xinjiang, China.

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Figure 1. A 13.37 ct grayish blue aquamarine displaying asterism. Photo by Towfiq Ahmed.
Star Aquamarine

A look at a very rare instance of a six-rayed star in aquamarine.

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Figure 1. Measuring 26.36 mm in length and weighing 56.00 ct, this Pakistani aquamarine crystal is host to an eye-visible 7.20 mm mineral inclusion cluster. Photo by Annie Haynes.
Quarterly Crystal: Columbite(?) in Beryl

Examination of a gem-quality aquamarine crystal reveals an inclusion cluster presumed to be columbite.

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Figure 1. Some of Virtu Gem’s larger gemstones from Kenya, Malawi, and Zambia at the Ethical Gem Fair. Clockwise from top: 45.00 ct citrine, 32.33 ct rutilated quartz, 9.80 ct aquamarine, 21.65 ct citrine, 9.99 ct aquamarine, 12.32 ct aquamarine, 17.20 ct aquamarine, and 20.15 ct citrine (center). Photo by Robert Weldon; courtesy of Virtu Gem.
Ethical Supply Chain Practices in Africa with Virtu Gem

A look at Virtu Gem, a company dedicated to improving artisanal mining practices in Africa.

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Figure 1. A 155 g aquamarine crystal containing a liquid and gas bubble inclusion. The crystal measures 11.9 cm long and the inclusion 4.3 cm long. Photo by Robert Weldon; courtesy of Kreis Jewellery GmbH.
Exceptional Gemstone Acquisitions by the Kreis Family

Stefan and Alexander Kreis share three impressive gemstone acquisitions at GJX in Tucson.

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Figure 1. Left: A 586.43 ct cat’s-eye aquamarine donated by Gary Bowersox and Kathleen Kolt-Bowersox to the Smithsonian National Museum of Natural History gem collection. Photo by Robert Weldon; courtesy of the Smithsonian National Museum of Natural History. Right: Dr. Jeffrey Post (left) and Gary Bowersox with the cat’s-eye aquamarine. Photo by Kathleen Kolt-Bowersox.
Enormous Cat’s-Eye Aquamarine

A 586.43 ct cat’s-eye aquamarine is donated to the Smithsonian National Museum of Natural History.

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This flux-grown synthetic beryl crystal weighs 211.78 ct.
Flux-Grown Synthetic Beryl Overgrowth

Examination of a doubly terminated flux synthetic beryl crystal reveals inclusions of columbite, copper, and an air bubble within flux liquid.

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