Back to gem encyclopedia

Emerald

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

Responsive image
Color

Highly saturated green color defines high quality emerald.

Responsive image
Beveled corners

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

Responsive image
“jardin,” or garden.

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

Responsive image
Responsive image
Six-sided

Emerald crystals are commonly six-sided.

Responsive image
Flat-top

The tops of emerald crystals are typically rather flat.

Responsive image
Color direction

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

Responsive image
Tools

Research

This emerald displays the roiled growth structure similar to the <i>gota de aceite</i> effect.
Gota de Aceite–Like Effect in a Brazilian Emerald

GIA’s Tokyo laboratory examines a Brazilian emerald with a gota de aceite–like effect characteristic of Colombian emeralds.

Read More

Cluster of bamboo-shaped apatite crystals in a Zambian emerald.
Apatite Cluster in Zambian Emerald

A fantastic example of an apatite inclusion cluster in emerald consisting of a hexagonal prismatic crystal and many rod- and bamboo-shaped crystals.

Read More

The fracture filling material displayed a visually interesting pattern in this emerald.
Fracture-Filled Emerald with Mysterious Filler Patterns

Filler patterns resembling a labyrinth are observed in emerald fractures.

Read More

Swat Valley emeralds are known for their intense vivid green color.
Myne London: Sourcing Emeralds with a Mission

A London-based company aims to responsibly source emeralds from Swat Valley, Pakistan, while supporting women in business and education.

Read More

Eight round/oval emeralds (left) and four round emeralds (right) used in study.
A Gemological and Spectroscopic Study with Mobile Instruments of “Emeralds” from the Coronation Crown of Napoleon III

An examination of 45 gems from the coronation crown of Napoleon III, using nondestructive mobile spectroscopic and gemological testing methods.

Read More

The Madonna emerald
History of Emerald Mining in the Habachtal Deposit of Austria, Part II

The finale of a two-part series on the mining history of Austrian emerald deposits in the Habachtal region.

Read More

A clarity-enhanced emerald showed repair work.
Unusual Repair of a Natural Emerald

Glass identified as the raw material used to conceal damage of a natural emerald.

Read More

A 1.86 ct pear-shaped Russian emerald.
Nail-Head Spicule in a Russian Emerald

The Carlsbad laboratory observes a nail-head spicule in a natural Russian emerald.

Read More

Emerald crystals from Habachtal
History of Emerald Mining in the Habachtal Deposit of Austria, Part I

Contributes to the mining history of Austria’s Habachtal region, which is believed to be one of the earliest emerald deposits.

Read More

Emeralds from Swat Valley, Pakistan
Inclusion and Trace Element Characteristics of Emeralds from Swat Valley, Pakistan

Presents a detailed study of gemological properties, inclusion features, spectroscopic characteristics, and chemical composition of emeralds from this important source.

Read More