An examination of jadeite decorated with smaller jadeite ornaments.

Results from GIA’s recent testing of a 10.08 ct blue HPHT synthetic diamond, the largest HPHT synthetic recorded to date.

Results from GIA’s recent testing of a 5.19 ct CVD synthetic diamond, the largest it has examined to date.

A rare Tasmanian trapiche-type sapphire, found during a field expedition, is examined.

Reports on a recently discovered eluvial deposit of honey yellow danburite with excellent transparency.

Describes the chemical, morphological, and microscopic properties of the first gem-quality synthetic emeralds ever produced, offering a historical perspective on their development.

Dramatic growth features are found on the surface of a titanite specimen from Russia.

Unusual doublets created from two different synthetics are revealed at the Carlsbad laboratory.

A turquoise bead is found to have an artificial pyrite and resin matrix.

The chemical composition and spectroscopic characteristics of 14 gold sheen sapphires are examined.

Provides a visual guide to the internal features of natural, synthetic, and treated emeralds.

An apatite crystal cluster, notable for its morphology and size, is found in a feldspar specimen.

Recounts an expedition to Mozambique’s important deposits of ruby, spinel, and tourmaline, which have yet to be fully explored.

An iridescent inclusion may reveal a diamond’s subsurface origin.

Transparent windows in chalcedony show Brazil-law twinning that vary as the piece is moved.

A report from “The Wonder of Fabergé: A Study of The McFerrin Collection,” held at the Houston Museum of Natural Sciences in November 2016.

A step-cut beryl is dyed to simulate emerald.

Screening reveals a surprise within a batch of synthetic diamond melee.

Examines Jaipur’s role as a colored stone cutting and jewelry manufacturing center, with profiles of 17 companies and their factory, trading, and retail operations.

在法国巴黎高等矿业学校的矿物学博物馆举办的《Illuminations, from Earth to Jewel》（璀璨：从尘埃到珠宝）展评。