43.15 CTS NATURAL OVAL SAPPHIRE TRAPICHE SHILLER EFFECT [STS570]

Item Information

Dimensions (mm) 22 x 19 x 11mm
Weight (carats) 4315 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.

$425.00 USD

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Pricing & Details

Auction ID 654626
Watchers 6 watching
Viewed 627 times
Starts 17th Apr 2017 11:37pm PDT

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