Laboratory-Grown Diamonds: An Update on Identification and Products Evaluated at GIA
Reviews the advancements and major trends in laboratory-grown diamonds observed by GIA since 2007.
Micro-Features of Tourmaline
Provides a visual guide to the internal features of tourmaline as well as tourmaline inclusions in other gem hosts.
Gemological and Trace Element Characteristics of Cassiterite from Yunling, China
Examines gem-quality cassiterite from southwest China and analyzes trace element chemistry to distinguish it from Bolivian cassiterite.
Gem-Quality Anorthoclase Feldspar from Southeast Vietnam
Characterizes an anorthoclase variety of alkali feldspar found in southeast Vietnam and evaluates its potential for commercial use.
Quarterly Crystal: Spessartine in California Quartz
Unique Fingerprint in Montana Sapphire
Metallic See-Through Backing on Omphacite Jade
Natural-Looking Inclusions in a Ramaura Synthetic Ruby
Cat’s-Eye Hexagonite
Dance of Light and Color: Painted Labradorite
Unusually Large Flux-Grown Synthetic Sapphire
New Emerald Production from the Curlew Mine, Western Australia
Large Natural Diamonds with Asteriated Cloud Inclusions
Two natural diamonds containing cloud inclusions that resemble stars are examined in the Carlsbad laboratory.
International Jewelry Tokyo 2024
G&G Facebook Group Surpasses 40,000 Members
Heliodor and Aquamarine with Surface Etching
Hexagonal etch features are observed on the prismatic faces of heliodor and aquamarine crystals.
Square-Shaped Cloud in Diamond
A natural faceted diamond displays a prominent square-shaped cloud under the table.
GIA Student Design Showcase
A GIA student from the New York campus receives recognition for a necklace design featuring diamonds, lavender jade, and akoya pearls.
Summer 2024 G&G Publication Information
This document provides the publication information for Gems & Gemology
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