Research Article Search Results

Presents a visual guide to the growth processes and major gemological spectroscopic features of synthetic diamonds.

A look at the mining and distinguishing characteristics of this naturally vibrant blue sapphire.

エリカ・コートニーは数十年にわたり、ハリウッドスターたちのレッドカーペットを彩ってきた。彼女の色彩感覚と宝石の美しさを引き出す才能は、一目瞭然だ。

The Responsible Jewellery Council (RJC) has announced plans to include colored stones and silver in the next revision cycle for its Code of Practices, which RJC members are certified against.

Jürgen Schütz discussed the opal sourcing and cutting activities of the German firm Emil Weis.

A look at the artistic heritage of the Drehers, an influential family of gem carvers in Idar-Oberstein, Germany.

Characterizes the akoya cultured pearls produced on the eastern shoreline of Australia using native Pinctada imbricate fucata mollusks.

Chatoyancy, rarely seen in play-of-color opal, is observed in Ethiopian material.

Analysis of a diamond graded Fancy blue revealed a CVD synthetic overgrowth on natural diamond.

A rare Tasmanian trapiche-type sapphire, found during a field expedition, is examined.

Analyzes the gemological and geochemical characteristics of peridot from the Gia Lai province alongside specimens from other localities to gain insight into its formation.

Reports on exceptionally rare trapiche-patterned rhodochrosite from the famed Capillitas mine in Argentina.