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.

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.

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.

Diamond with Mobile Green Diamond Inclusion
Diamond inclusions are relatively common guests in diamond crystals.

“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.

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

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

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.

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

Fluorescence Spectroscopy for Colored Pearl Treatment Screening
A nondestructive rapid screening technique uses fluorescence spectroscopy to identify treated colored pearls.

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

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.




