Characterises a suite of 40 natural brown to black diamonds from this deposit so that they can be distinguished from suspected treated black diamonds.
Read MoreThe first substantiated identification of corundum (var. ruby) occurring as an inclusion in natural diamond is presented.
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Peer through a microscope and discover another world of gems. Inclusions reveal the gem’s journey from deep within the earth to its surface.
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An iridescent inclusion may reveal a diamond’s subsurface origin.
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Under magnification, a round brilliant diamond features a pyrope garnet inclusion in an aesthetically pleasing shape.
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Inclusions with unusual formation are found in a treated Fancy Vivid yellow diamond.
Read MoreDr Evan Smith, Ph.D., GIA research scientist, has dedicated his work to methodically characterising the inclusions found in rare diamonds. In this video presentation recorded at the 2017 JCK Las Vegas show, Smith shares his findings on the unexpected ori
Read MoreThe author reports on a sudden influx of natural fancy pink diamonds and their origins.
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This article explores and identifies the changes that type IIa GE POL diamonds experience before and after HPHT annealing.
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Presents what is believed to be the first report of a xenotime inclusion in gem-quality diamond.
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