Burmese Star Peridot
A rare Burmese star peridot cabochon is characterized by a soft four-rayed asterism and extremely fine acicular inclusions.
Carvings from Bali
Picturesque beaches and lush green jungles are not the only attractions that make Bali the most popular tourist destination in Indonesia.
Dyed Chalcedony Imitation of Chrysocolla-in-Chalcedony
Chrysocolla-in-chalcedony, also known as gem silica or blue chalcedony in Taiwan, is the most valuable chalcedony variety on the Taiwanese market.
Ethical Gem Fair
A transparent supply chain and the education of artisanal miners were two of the many topics discussed at Tucson’s first Ethical Gem Fair.
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.
Gem Carvings, Fantasy Cuts, and Master Recutting
This year at the AGTA show, the number of booths selling skillfully carved, fantasy cut, or expertly recut items was noticeably higher than in past years.
G&G Launches Facebook Group
On February 5, 2020, Gems & Gemology launched a Facebook group dedicated to gemology and research published in the journal.
Large and Fine Demantoid from Russia
Unusually large top-quality faceted Russian demantoid garnets with the characteristic lovely green to yellowish green color excite attention at the Tucson GJX show.
Nephrite Jade from Multiple Sources
Green nephrite deposits are found at many locations around the globe, with British Columbia, Siberia, and northwestern China as the leading producers.
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.
Russian Emerald
Untreated Russian emeralds, rarely seen in the market, demonstrate a range of color and degree of fineness.
Sunstone Plagioclase Feldspar from Ethiopia
Advanced analytic techniques are critical for separating Ethiopian feldspar from Oregonian and copper-bearing feldspar with undetermined color origin.
Third Annual Gianmaria Buccellati Foundation Award Winner
A delicate, ethereal necklace depicting a diamond butterfly caught in a gem-studded spider’s web won the third annual Gianmaria Buccellati Foundation student jewelry design contest.
Trapiche Gems
The unusual six-rayed trapiche pattern, identified mainly with Muzo emeralds, has also been discovered in Mogok sapphires and Mong Hsu rubies.
Tucson 2020 Overview
In early February, despite the early phase of the COVID-19 outbreak, the Tucson shows were well attended and sales were brisk.
Saltwater Bead Cultured Pearl with Laminated Nucleus
The Bangkok laboratory recently examined a pearl containing a laminated shell bead nucleus with mysterious properties.
Fluorescence Spectroscopy for Colored Pearl Treatment Screening
A nondestructive rapid screening technique uses fluorescence spectroscopy to identify treated colored pearls.
Spring 2020 G&G Publication Information
This document provides the publication information for Gems & Gemology
Bicolor Synthetic Sapphire
RusGems creates striking synthetic bicolor gems using the flame-fusion technique.
Dutrowite: New Mineral Species of Tourmaline
Discovered in the Italian Alps, a new mineral species of tourmaline has been named for Dr. Barbara Dutrow in honor of her teaching and research contributions to the field.