Book Review: Geology: A Very Short Introduction

Review of Geology: A Very Short Introduction by Jan Zalasiewicz.

続きを読む

Book Review: Masterpieces in Miniature: Engraved Gems from Prehistory to the Present

Review of Masterpieces in Miniature: Engraved Gems from Prehistory to the Present by John Boardman and Claudia Wagner.

続きを読む

Book Review: Symphony of Jewels: Anna Hu Opus 2

Review of Symphony of Jewels: Anna Hu Opus 2 by Janet Zapata with Sarah Davis.

続きを読む

A Guide to Diamonds with the 480 nm Absorption Band

Summarizes the features of 480 nm band diamonds, including chameleon diamonds and those with unmodified orange hues, for rapid identification or advanced gemological testing.

続きを読む

Converge 2025 Poster Presentations

An overview of more than 30 posters presented at the Converge conference.

続きを読む

Winter 2025 G&G Available Now

An overview of the Winter 2025 Gems & Gemology content.

続きを読む

巨匠宝石カッターの秘密

For more than two decades, former plumber, welder and jewelry store-owner Dyber has been dazzling the world with his brilliant stone carvings ranging from sizes that fit in the palm of the hand to 12-lb quartz behemoths that can dominate a room.

続きを読む

タンザニアの宝石と宝飾品産業の発展

A native of Kenya, Susie Kennedy teamed up with her husband in the 1990s to establish their place in the gem industry.

続きを読む

Kathryn Kimmel

The first woman on the executive team and head of GIA’s innovative marketing and public relations efforts for nearly 30 years.

続きを読む

The Talisman of Charlemagne: New Historical and Gemological Discoveries

Reveals new details about this historical jewel and the results of its first gemological analysis.

続きを読む

From Single Source to Global Free Market: The Transformation of the Cultured Pearl Industry

Over the past 15 years a combination of market forces, environmental events, and scientific research has radically changed the cultured pearl industry.

続きを読む

Exhibition Review: *Gemstone Carvings: The Masterworks of Harold Van Pelt*

A review of Gemstone Carvings: The Masterworks of Harold Van Pelt at the Bowers Museum in Santa Ana, California.

続きを読む

サファイアの品質を決定する要因

サファイアは、ルビーとエメラルドと並ぶ三大カラーストーンの一つです。耐久性に優れたこの宝石は、その実用性とロマンチックな雰囲気で、ジュエリー購入者を魅了し続けています。こちらをクリックして、サファイアがこれほどまでに人気を集める理由をご覧ください!

続きを読む

就職ハンドブック

この小冊子には、就職検索で成功するために必要ないくつかの必須情報が含まれています。

続きを読む

Book Review: Wartski: The First Hundred and Fifty Years

Review of Wartski: The First Hundred and Fifty Years, by Geoffrey Munn.

続きを読む

Book Review: Cartier Royal High Jewelry and Precious Objects

Review of Cartier Royal High Jewelry and Precious Objects, by François Chaille.

続きを読む

Book Review: The Classic Goldsmith

Review of The Classic Goldsmith, by Mark Maxwell.

続きを読む

Book Review: Collector’s Guide to the Amphibole Group

Review of Collector’s Guide to the Amphibole Group, by Robert J. Lauf.

続きを読む

アールデコの時代を超えた魅力

狂騒の20年代 - 私たちはまだその魅力のとりこです。

続きを読む

ダウントン·アビーでのジュエリー

ダウントン·アビーでのジュエリー

続きを読む

前へ5 / 116 ページ次へ

こちらもご覧ください

YMAL GIA Ed
通学やオンラインでの教育について学ぶ
Learn About NextGem
GIA ネクストジェム(NextGem) ダイヤモンド研修 小売業向け
Explore GIA Laboratory Promotional Offers
GIAラボラトリーの特別オファーを見る
Shop the GIA Store
GIAストアで ショッピング