Spectacular Bi Color Ametrine Gemstone from Bolivia, 5.29 cts., 13 x 11 mm., Precision Cut Trillion Shape

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Gem: Ametrine (Quartz)
Weight: 5.29 cts
Size: 13.40 x 11.78 mm
Color: Purple and Yellow
Clarity: VVS
Cut: The Samurai Trillion
Locality: Bolivia
Treatment: None

This is a top notch Ametrine gem because it has all of the classic attributes you would like to see for this material. Ametrine is a naturally occurring purple and yellow bi-color variety of Quartz that is formed by a unique twin law ("Brazil Law Twinning") where two separate individually colored crystals are intergrown to form an alternating "radiation" pattern of purple (Amethyst) and yellow (Citrine) triangles when viewed down the c axis. The two colors are oriented based upon their position inside the crystal to create the famous bicolor gemstones. This stone is oriented beautifully for the classic bi-color split, and the cut is a special trillion that is called “The Samurai” and is excellent for Ametrine. The clarity is excellent and the stone has fine light return. The colors are saturated; practically as good as this material comes. This stone is 100% natural and is not treated in anyway. This stone is excellent quality for jewelry, and would make a one of a kind custom ring. This stone was faceted by Brett Kosnar, during January 2018. Enjoy!

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