記者発表の検索結果
Rare Faceted Väyrynenite
Uniquely saturated examples of the collector stone were on display at GJX.
Jewelry Television in Tucson
Wearable Art Jewelry Supporting Families in Guatemala
Phenomenal Emeralds from Chitral, Pakistan
Citrine from Zambia
Nanoscale Techniques for Characterizing Gemstone Coatings: A Case Study on Synthetic Moissanite
Provides a basis for analyzing colored coatings on a variety of polished gemstones.
Tairus Hydrothermal Synthetic Sapphires Doped with Nickel and Chromium
Diamond Identification
Liberian Ruby
A trip to a rural Liberian diamond mining community results in a newly discovered source of corundum.
Gemological Characteristics of Saltwater Cultured Pearls Produced After Xenotransplantation
Anahí’s “New” Ametrine
The Anahí mine in southeastern Bolivia has enjoyed consistent production since 1990 and is best known for its ametrine.
History of the Chivor Emerald Mine, Part I (1880–1925): From Rediscovery to Early Production
Chronicles developments at the Chivor emerald mine in Colombia between 1880 and 1925, based on archival records.