新闻稿搜索结果
Gem-Quality Augite from Dong Nai, Vietnam
Offers a comprehensive look at a variety of augite from Dong Nai, Vietnam, detailing its formation and gemological characteristics.
Paraíba Tourmaline Melee: An Entry-Level Market Perspective
Green Jadeite-Omphacite from Guatemala
Burmese Jade: The Inscrutable Gem
Color Modification of Spinel by Nickel Diffusion: A New Treatment
Reports on a newly discovered treatment process for producing a deep blue color in natural spinel and proposes identification criteria.
Sixth Annual Gianmaria Buccellati Foundation Award Winner
A graduate of GIA’s Jewelry Design program in London is the recipient of the 2022 Gianmaria Buccellati Foundation Award.
Gems & Gemology Turns 90!
Low-Temperature Heat Treatment of Pink Sapphires from Ilakaka, Madagascar
Studies the effects of low-temperature heat treatment on inclusions in this gem material, as well as the use of FTIR spectroscopy to detect the treatment.
An Investigation of a Suite of Black Diamond Jewelry
International Jewelry Tokyo 2024
