Research Article Search Results

A Quantitative Description of the Causes of Color in Corundum

Presents a quantitative means of determining the causes of color in a gem material, using corundum’s six major chromophores as an illustration.

Read more

Color Characteristics of Blue to Yellow Beryl from Multiple Origins

Discusses the features of alkali elements and their influence on the color of blue to yellow beryl.

Read more

Formation of the “Matryoshka” Diamond from Siberia

A freely moving diamond crystal completely enclosed in a diamond from Siberia gets its name from the famous Russian nesting dolls.

Read more

Diamond with Mobile Green Diamond Inclusion

Diamond inclusions are relatively common guests in diamond crystals.

Read more

“Electronic Device” in an Atypical Bead Cultured Pearl

GIA’s Hong Kong laboratory looks at a new radio-frequency identification (RFID) technology for tracking cultured pearls.

Read more

Trapiche Gems

The unusual six-rayed trapiche pattern, identified mainly with Muzo emeralds, has also been discovered in Mogok sapphires and Mong Hsu rubies.

Read more

G&G Launches Facebook Group

On February 5, 2020, Gems & Gemology launched a Facebook group dedicated to gemology and research published in the journal.

Read more

Fine-Quality Jadeite Jewelry

Inclusions resembling snowflakes, and hues of many colors, are two characteristics seen in fine-quality jadeite specimens on offer at the Tucson gem show.

Read more

Carvings from Bali

Picturesque beaches and lush green jungles are not the only attractions that make Bali the most popular tourist destination in Indonesia.

Read more

Fluorescence Spectroscopy for Colored Pearl Treatment Screening

A nondestructive rapid screening technique uses fluorescence spectroscopy to identify treated colored pearls.

Read more

Russian Emerald

Untreated Russian emeralds, rarely seen in the market, demonstrate a range of color and degree of fineness.

Read more

Nigerian Gems and Jewelry

Mina Stones promotes Nigerian gems including rubellite and sapphire as well as reviving traditional skills and symbols in the creation of original jewelry.

Read more

PreviousPage 46 of 134Next

You Might Also Like

YMAL AJP
AJP®: New 5-Day Program Offered Worldwide
Learn About NextGem
GIA NextGem™ Diamond Training for Retail
Explore GIA Laboratory Promotional Offers
Explore GIA Laboratory Promotional Offers
Shop the GIA Store
Shop the GIA Store