搜索

Dyed Green Beryl

A step-cut beryl is dyed to simulate emerald.

Mixing of Natural Diamonds with HPHT Synthetic Melee

Screening reveals a surprise within a batch of synthetic diamond melee.

The Santa Terezinha De Goias Emerald Deposit

The author has uncovered many ancient references to the simulation or enhancement of gemstones.

版权和商标

Freshwater Pearls vs. Saltwater Pearls: Understanding the Difference

GIA 报告结果 API

GIA 报告结果 API 将多款应用程序与 GIA 数据库集成，用于验证分级信息，检索 PDF 版 GIA 报告、图像以及其他 GIA 报告相关资源。此服务适用于 GIA 报告核对中的所有报告。

Quarterly Crystal: Cinnabar in Fluorite

Trigonal cinnabar inclusions are identified in a crystal cluster of fluorite and calcite.

Flux-Induced Fingerprint Patterns in Synthetic Ruby: An Update | Gems & Gemology

Some manufacturers are known to have treated Verneuil flame-fusion synthetic rubies by immersion in a flux melt to induce patterns like the “fingerprints” seen in some natural rubies.

学生工作室

Bismuthinite Inclusions in Rose Quartz from Madagascar

Eye-visible inclusions are common in almost all quartz varieties except rose quartz.

链接到 GIA

美国宝石研究院 (GIA) 提供领先的宝石和珠宝知识、标准、教育，尽可能地为公众提供教育服务是我们的使命之一。欢迎直接链接到我们的网站。我们提供若干个按钮，以供您直接链接到 GIA.edu 或 GIA Gem Encyclopedia（美国宝石研究院 (GIA) 宝石百科全书），同时也为您的网站添加了悦目的视觉元素。