Article Search Results

Show Filters
Showing 117 results for "*"
Multi-colored gems are superimposed on an image of glacier peaks.
Article
Gems and Minerals from the Subarctic

Circumnavigate the boreal reaches of the globe to explore gems from polar regions.

Read More

A round, bright red gem displayed on a dark gray background.
Article
The Red Hot Gems of Summer

These red, pink and orange hued gems evoke passion and excitement – and are surefire accessories for sultry summer days.

Read More

Rough blue spinel crystals from Luc Yen
Blue Spinel from the Luc Yen District of Vietnam

Offers geological context and gemological characterization of this increasingly popular vivid blue spinel from northeast Vietnam.

Read More

Hunting for Spinels in Vietnam
Article
Seek the World’s Most Vivid Blue Spinel with GIA Field Gemologists

Join GIA’s field gemologists as they seek Vietnam’s exotic sky-blue spinel.

Read More

Spinel suites in a range of hues.
Fine Gems and Update from Myanmar

A look at top-quality gems and insight into a delegation’s visit to gem mines in Myanmar.

Read More

Ruby-bearing gravel bed in Mugloto.
Update on Gemstone Mining in Northern Mozambique

Recounts an expedition to Mozambique’s important deposits of ruby, spinel, and tourmaline, which have yet to be fully explored.

Read More

Yellowish green spinel.
Unusual Yellowish Green Spinel

A spinel in a rarely seen color is submitted to the New York lab.

Read More

Striking color suites
Bold Color Combinations

Color and size make a statement at this booth in Tucson.

Read More

Daniel and Andre Assaf of the Tsavorite Factory
Tsavorite Garnet and Mahenge Red Spinel

A discussion of the current demand for tsavorite and spinel in today’s market.

Read More

Verneuil-grown synthetic spinel with unusual short-wave UV reaction
Unusual Short-Wave UV Reaction in Synthetic Blue Spinel

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

Read More