30.20 CTS NATURAL OVAL SAPPHIRE TRAPICHE SHILLER EFFECT [STS573]

Item Information

Dimensions (mm) 20 x 16 x 10mm
Weight (carats) 30.2 carats
Colors

SEDA GEMS

NATURAL SAPPHIRES-MADAGASCAR High Luster-Nice display of crystal formation making them interesting stones with shiller [

schiller ] effect. PART TRAPICHE IN THIS STONE.

This is a  natural unheated oval shaped  sapphires ready for setting .

Sapphires and rubies are formed at great depth in the earth’s mantle or the lowest part of the crust Although blue is considered the normal color for sapphires, they can be found across a full range of spectral colors as well as brown, colorless, grey and black. Those other than blue in color are considered fancy color sapphires. A star sapphire is a type of sapphire that exhibits a star-like phenomenon known as asterism. Star sapphires contain intersecting needle-like inclusions (often the mineral rutile, a mineral composed primarily of titanium dioxide ) that cause the appearance of a six-rayed ‘star’-shaped pattern when viewed with a single overhead light source.

$300.00 USD

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Pricing & Details

Auction ID 654633
Watchers 10 watching
Viewed 691 times
Starts 17th Apr 2017 11:55pm PDT

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