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Cool and elegant, this is a natural, untreated 81-carat Blue Aventurine cut as a faceted oval measuring 32.2 x 25.2 x 14.7 mm. Although at first glance it seems to be an even, deep blue, under magnification all the lovely nuances of color within the stone are clearly revealed. There are hints of red and brown, plus the subtle shimmering, glistening effect called aventurescence is present on both sides of the gemstone and also at whatever angle you view the stone. This would be a beautiful focal for a pendant, a brooch, a bracelet or even a statement ring, and would be enhanced by a setting of a bright metal like gold, platinum or silver.

The most common colour of Aventurine is green, but it may also be orange, brown, yellow, blue, or gray.

The pictures give an idea of how the gemstone looks under various lighting conditions and different backgrounds. The last picture shows the detail on the back of the gem.

Aventurine, being is a form of quartz, rates 6 - 7 on the Mohs scale of mineral hardness. Aventurine is associated with the astrological sign of Aries, it is the anniversary gemstone for the 8th year of marriage and is an alternate birthstone for the month of August.

Blue Aventurine faceted natural oval gemstone 81 cts


Only 1 available


  • Craft type: Jewelry making
  • Materials: natural gemstone, untreated blue aventurine
  • Ships worldwide from United Kingdom
  • Feedback: 132 reviews
  • Favorited by: 19 people