The Gemological Institute of America (GIA) recently reported in its latest issue of Gems & Gemology that some natural diamonds were observed interesting feather inclusions.
A 1.55-carat, G-colour and I-clarity round diamond appeared to contain heavy feather inclusions that resembled a swarm of butterflies. A feather breaking the pavilion surface was observed face-up through the crown, with mirror and prism images creating the appearance of a white butterfly (image 1). Since the inclusion was visible through the upper half and bezel facets of the diamond, five prism images were formed, befitting the word “kaleidoscope” occasionally used to describe a group of butterflies, said the lab.
Another 0.30-carat, F-colour, VS-clarity round diamond housed a small feather in the table with a mirror reflection (image 2). The reflection along with the actual inclusion resembled a tiny fish swimming under the warm rays of the sun. Feathers are commonly seen in diamonds, but such unique and precise shapes of fish and butterflies are uncommon, said GIA. (Photo courtesy: GIA)
11-11-2024
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