Research Article Search Results

Photoluminescence spectroscopy examines how gemstones absorb and emit light, uncovering crucial details about their identity and color origin through the detection of microscopic defects and impurities.

Infrared spectroscopy, specifically FTIR analysis, measures atomic vibrations to determine identity, cause of color, and potential treatments by analyzing how a gemstone absorbs infrared light.

UV-Vis-NIR spectroscopy measures how gemstones absorb and interact with light across the ultraviolet, visible, and near-infrared ranges, revealing crucial information about their composition, origin, and potential treatments.

Gemology has become a highly technical field employing analytical instruments for gem testing, driven by the need to address increasingly complex identification challenges in the marketplace.

A surface-reaching crystal in a green sapphire is identified as musgravite.

Examination of rock crystal quartz spheres reveals rose-like hematite inclusions.

A unique art piece crafted with more than 9,200 diamonds is examined at GIA’s Carlsbad laboratory.

Examination of polished quartz samples reveals crystal inclusions identified as hedenbergite and sphalerite.

A look at Harvey Liberman’s career as a renowned diamond cutter in New York’s Diamond District.

An unusual area of granular texture lining the cavity of a ruby indicates synthetic overgrowth.

A large purplish pink pezzottaite with growth banding and tube inclusions is examined in the Carlsbad laboratory.

Reports on the study of sapphire samples from a newly discovered source in southern Tanzania.