A blue synthetic spinel grown by the Verneuil process displayed the short-wave UV reaction of a flux-grown sample.

Examination revealed a rare instance of a silicon-vacancy defect in natural diamond.

The discovery of apatite and CO₂ in a single inclusion in sapphire is reported for the first time by the Carlsbad laboratory.

An unusual hematite crystal from Pakistan hosts a geometric outer skin of sagenitic rutile.

Popular “candy agate” beads are identified as epoxy-filled chalcedony at the Taiwan Union Lab of Gem Research.

The Carlsbad laboratory received a lab-grown sapphire featuring a flux fingerprint similar to those found in natural sapphire.

A novelty cut Fancy yellow diamond submitted to the Carlsbad laboratory bears a striking resemblance to the iconic Apple Inc. logo.

The Tokyo lab recently observed its first example of euclase with an orangy pink color, possibly caused by manganese.

Unusual color zoning likely indicates multiple treatments of a Fancy Intense green-yellow diamond.

The history of engraved gems and a look at the engraving process itself.

A review of the various techniques in use today to change colorless topaz to a variety of hues.

Aviat kimberlites 位于努勒维特（Nunavut）东北部的梅尔维尔半岛（Melville Peninsula）。

Review of Jewels & Jewelry by Clare Phillips.

Review of Gempedia: A Comprehensive Glossary for Gemstones and Gemmology by Rui Galopim de Carvalho.

Review of Jeweler’s Enameling Workshop: Techniques and Projects for Making Enameled Jewelry by Pauline Warg.

在未来两年内，加拿大北部（西北地区、育空和努勒维特）不同采矿项目的扩张将带动该国的经济增长。

From the Summer 2013 issue of G&G, a brief overview and commentary on the article featured in Diamond World, Vol. 40, No. 2

The American Gem Society (AGS) announces two events for 2021: Confluence in April and Conclave in September.

The production of Chinese freshwater pearls faced little disruption from the global pandemic according to sources at the World Pearl Congress.