Article Search Results

Fancy brownish greenish yellow diamond with octahedral-shaped inclusion.

Graphite Inclusions Forming Octahedral Outline in Diamond

Yixin (Jessie) Zhou, February 1, 2016

An inclusion outlined by minute graphite crystals within a diamond create an octahedral shape.

Coesite Inclusions with Filaments in Diamond

Evan M. Smith, Christopher Vendrell, and Paul Johnson, January 27, 2017

Inclusions with unusual formation are found in a treated Fancy Vivid yellow diamond.

CVD Synthetic Diamond with Unusual Inclusions

Troy Ardon, October 31, 2014

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

Spinel Inclusion in Spinel

Amy Cooper and Ziyin Sun, January 30, 2015

Examination of a pink-purple spinel revealed what appeared to be a spinel crystal inclusion.

Xenotime Inclusion in Yellow Diamond

Kyaw Soe Moe, Martha Altobelli, and Paul Johnson , October 31, 2014

Presents what is believed to be the first report of a xenotime inclusion in gem-quality diamond.

Confusing, Triangular Inclusions in an Art Deco-Style Pin

Spring 1991 G&G Lab Notes

March 1, 1991

This section, from the Spring 1991 issue of Gems & Gemmology, is a compilation of interesting finds from GIA’s laboratories.

Stellate zircon inclusions in vivid purple-pink morganite

Tara Allen and Nathan Renfro, January 31, 2014

Zircon clusters and other inclusions help to create an unusual vivid purple-pink morganite specimen.

Unusual Curved Colour Zoning In Emerald

Nathan Renfro, Vincent Pardieu, and Supharart Sangsawong, GIA, July 1, 2013

A report on a 1.17 ct emerald obtained in Kabul, Afghanistan for GIA's permanent reference collection

Fish-Like Inclusion Found in Fancy Yellow "Cape" Diamond

Martha Altobelli, GIA , July 1, 2013

A recent lab examination at GIA New York revealed an inclusion in a rectangular Fancy Yellow called "pareidolia", which means it was a resemblance of the scales and form of a fish.

Diamond with High Concentration of Nickel

Troy Ardon, October 17, 2013

Analysis of Fancy Light greenish yellow diamond leads to detection of nickel, as well as an inclusion that gives a colour-change effect.

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