Item Information

Dimensions (mm) not provided
Weight (carats) not provided
Certified Gemstone


This is a stunning carving done by a machine with much detail and a top finish.The pearl [nacre ] shell glistens like opal colour.

Weight 35.20 cts app

size 40 x 30 x 3 mm app

Nacre is made mostly of aragonite--a calcium carbonate crystal--arranged in 500-nanometer-thick layers. It forms from ions in seawater that washes through an organic "scaffold" of thin, interconnected, horizontal sheets--the animal essentially lays the "mortar" before filling in the "bricks." The iridescence of mother-of-pearl comes from the interference of light as it reflects from the thin, crystalline layers. But the beauty is only part of what drew Pupa Gilbert, of the University of Wisconsin, Madison, to study nacre. "Materials scientists have been interested in mother-of-pearl for decades because this material is 3000 times more resistant to fracture than its components," she says, referring to the organic and crystalline constituents.

1d 21h 28m 3s

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Pricing & Details

Bid Increment $1.00
Starting Bid $15.00
Auction ID 275977
Watchers 1 watching
Viewed 431 times
Starts 24th Oct 2016 1:02am PDT
Ends 26th Oct 2016 1:00am PDT

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