74th Bangkok Gems & Jewelry Fair Trade Show

Join us at the Bangkok Gems & Jewelry Fair to explore a diverse range of gemstones, jewelry and industry solutions from leading Thai and international suppliers. Discover tools, components, and machinery for the trade, and attend GIA seminars on pearls and colored stone origin determination.

阅读更多

Goethite Sprays in Apatite

Examination of a green-blue apatite reveals goethite in a surface-reaching fracture.

阅读更多

Tucson 2026 Overview

A summary of the findings at the 2026 Tucson gem shows.

阅读更多

Fireworks in Aquamarine

Iridescent thin films in aquamarine resemble fireworks in the night sky.

阅读更多

High-Clarity Suite of Color-Change Pyrope Garnets

Todd Wacks exhibits his exceptional graduated suite of 65 matched color-change pyrope garnets from Morogoro, Tanzania.

阅读更多

“Basketball Player” in Diamond

A diamond’s cloud and crystal inclusions create a unique scene.

阅读更多

Gold Sheen Sapphire

A variety of colors and effects were observed in “gold sheen” sapphire from eastern Kenya.

阅读更多

“Comet Tail” Needle Cluster in Garnet

A cluster of needle inclusions in a pyrope-almandine garnet is reminiscent of a comet’s tail.

阅读更多

Tucson 2026: Pearl Market Report

An update on the global pearl market from vendors at the Tucson gem shows.

阅读更多

“Meteor Shower” in a Pearl

A natural nacreous pearl from the Mytiloidea superfamily displays a visual effect suggestive of a meteor shower.

阅读更多

Color-Treated Purple Diamond Rough with Interesting Growth Pattern

Patterns observed in a color-treated purple diamond reveal details about its growth history.

阅读更多

Animal Motifs with Purpose

Jewelry designer Samira Mazloom draws awareness to endangered species with her unique “Fading Footprints” collection.

阅读更多

Play-of-Color on a Pen Pearl

Calcitic crystals on the surface of a pen pearl display a play-of-color phenomenon under fiber-optic illumination.

阅读更多

“Spiderweb” Structure on a Pearl’s Base

Examination of a natural pearl reveals a cavity formation with thread-like filaments.

阅读更多

Interpenetrant Twins in Natural Diamond

A vivid orangy yellow rough diamond displaying penetration twinning is examined in the Carlsbad laboratory.

阅读更多

Hardstones in Fine Jewelry

Eleux Jewelry offers unique pieces pairing hardstones such as agate and turquoise with diamonds and other precious gems.

阅读更多

Euhedral Aquamarine Crystals in Quartz

Microscopic examination of quartz reveals well-formed blue hexagonal prismatic crystals exhibiting moderate pleochroism.

阅读更多

Emerald with Abundant Magnetite Inclusions

An unusually high abundance of magnetite in four distinctive crystal habits is observed in a Zambian emerald.

阅读更多

Ninth Annual Gianmaria Buccellati Foundation Award Winner

A graduate of GIA’s Jewelry Design program in Carlsbad, California, is the recipient of the 2025 Gianmaria Buccellati Foundation Award.

阅读更多

A Fashioned Dyed Shell Imitation Pearl

An imitation is identified in a parcel of non-nacreous pearls submitted to the Mumbai laboratory.

阅读更多

上一页第 1 页,共 150 页下一页

您或许还会喜欢

YMAL GIA Ed
了解校园课程和在线教育
Learn About NextGem
GIA NextGem™ 钻石零售 培训
Explore GIA Laboratory Promotional Offers
探索 GIA 鉴定所的促销优惠
Shop the GIA Store
访问 GIA 商店