Gem-Quality Synthetic Diamonds Grown by a Chemical Vapor Deposition (CVD) Method
Brown-to-gray and near-colorless single-crystal type IIa synthetic diamonds grown.
“Diffusion Ruby” Proves to be Synthetic Ruby Overgrowth on Natural Corundum
A relatively new production of red corundum, reportedly from Bangkok, has been offered for sale in recent years.
Gemological Investigation of a New Type of Russian Hydrothermal Synthetic Emerald
Tairus, in Novosibirsk, has produced yet another new type of Russian hydrothermal synthetic emerald.
Russian Flux-Grown Synthetic Alexandrite
Synthetic alexandrite is being flux-grown in Russia.
Growth Method and Growth-Related Properties of a New Type of Russian Hydrothermal Synthetic Emerald
A new type of Russian hydrothermal synthetic emerald is produced.
Spring 1991 G&G Lab Notes
This section, from the Spring 1991 issue of Gems & Gemology, is a compilation of interesting finds from GIA’s laboratories.
Inamori Synthetic Cat's-Eye Alexandrite
This article reports on a detailed gemological examination of this new synthetic cat's-eye alexandrite.
The Lennix Synthetic Emerald
An examination of the gemological properties of a French flux fusion-grown synthetic emerald.
A Study of the General Electric Synthetic Jadeite
Synthetic jadeite, the result of an experimental study, is examined in this article.
Confocal Micro-Raman Spectroscopy: A Powerful Tool to Identify Natural and Synthetic Emeralds
More than 300 natural and synthetic emeralds from various sources were examined with confocal Raman spectroscopy.