“Cotton Pearl” Imitations
An in-depth look at a new pearl simulant gaining popularity in the fashion jewelry market.
GIA Launches Newly Redesigned Consumer Website
Everything retailers and their customers need to know about diamonds just got easier to find and understand with GIA’s redesigned consumer-facing website dedicated to the 4Cs of Diamond Quality – Clarity, Cut, Color and Carat Weight – and to serve as the go-to source for gemstone information.
GIA 養殖珍珠報告包含可追溯性訊息
GIA Cultured Pearl Reports Include Traceability Information
Technology developed by Hong Kong-based Fukui Shell Nucleus Factory creates opportunities for tracing cultured pearls through the supply chain.
Akoya Cultured Pearl Prize in an Arcade-Style Claw Game
Arcade-style games in Japan dispense akoya pearl jewelry as prizes.
Hammered Effect in a Worked Pearl
A natural saltwater pearl displays the optical illusion of a bumpy texture.
Heliodor and Aquamarine with Surface Etching
Hexagonal etch features are observed on the prismatic faces of heliodor and aquamarine crystals.
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.
International Jewelry Tokyo 2024
G&G Facebook Group Surpasses 40,000 Members
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
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.
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