World-class fancy colored diamonds and truly historic jewels highlighted the 2018 auctions, but total jewelry sales were down from 2017.

正在为特别的人挑选礼物吗？十二月生日石为每一种品味、风格和个性都提供了丰富选择 — 即使十二月并不需要庆祝生日也可以但挑无妨。

11 月 14 日，十件 Marie Antoinette（玛丽·安托瓦内特）的珠宝以及 90 件其他王室家族珠宝在苏富比日内瓦拍卖会上拍出了惊人的价格。

Abstracts of speaker presentations from the “Colored Stones and Pearls” session of GIA’s 2018 International Gemological Symposium.

A recap of the Futurescape Forum panel from GIA’s 2018 International Gemological Symposium.

Poster abstracts on “Gem Localities and Formation” from GIA’s 2018 International Gemological Symposium.

Poster abstracts on “New Technologies and Techniques” from GIA’s 2018 International Gemological Symposium.

This document provides the publication information for Gems & Gemology

Scenes from the 2018 GIA International Gemological Symposium

An overview of the Summer 2018 Gems & Gemology content.

Poster abstracts on “Diamond Geology” from GIA’s 2018 International Gemological Symposium.

Poster abstracts on “Diamond Identification” from GIA’s 2018 International Gemological Symposium.

Abstracts of speaker presentations from the “New Technologies and Techniques” session of GIA’s 2018 International Gemological Symposium.

Poster abstracts on “General Gemology and Jewelry” from GIA’s 2018 International Gemological Symposium.

Abstracts of speaker presentations from the “Diamond Identification” session of GIA’s 2018 International Gemological Symposium.

Abstracts of speaker presentations from the “Gem Localities and Formation” session of GIA’s 2018 International Gemological Symposium.

Abstracts of speaker presentations from the “General Gemology and Jewelry” session of GIA’s 2018 International Gemological Symposium.

Abstracts of speaker presentations from the “New Technologies and Techniques” session of GIA’s 2018 International Gemological Symposium.

Poster abstracts on “Colored Stones and Pearls” from GIA’s 2018 International Gemological Symposium.