Research Article Search Results

Melee diamonds can be efficiently screened for synthesis and treatment using infrared absorption spectroscopy, DiamondView imaging, and microscopy.

Describes the extremely rare polished pink diamonds from Australia’s Argyle mine that have been sold for 30 years through invitation-only tenders.

Review of Yvonne J. Markowitz and Denise Doxey's Jewels of Ancient Nubia.

Although this stone bore some superficial resemblance to moissanite, its gemological properties were consistent with HPHT synthetic diamond.

A look at the first CVD synthetic diamond examined at GIA that has been irradiated to a blue color.

Overview and commentary on the 2013 The Journal of Gemmology article “Peñas Blancas: An Historic Colombian Emerald Mine."

Review of Ronald McIntosh and Warren Anderson's Kentucky Agate: State Rock and Mineral Treasure of the Commonwealth.

Examination of a CVD synthetic diamond with an unusual pattern of growth dislocations that resemble natural inclusions.

Examination of two CVD synthetic diamonds with an unusual Fancy Dark gray color.

Offers a firsthand look at Sri Lanka’s mining, cutting, jewelry manufacturing, and retail sectors, where tradition and innovation converge.

Discusses the role of three-phase inclusions in emerald, in combination with spectroscopy and trace-element analysis, in determining geographic origin.

Review of The Collector's Guide to the Minerals of New York State.