Australian boulder opal cabochon with a stunning yet slightly illusive bright blue flash of colour that runs down the center of the stone. This is quite a dark stone, with milky grey stripes down the sides, the flash runs down the center of the stone when caught at the right angle. When the light hits the stone there is a striking flash of blue colour (but it does require being at the right few angles to be seen). This would be lovely as a large pendant on a long necklace so you can see the flash as it moves. For inspiration on setting stones like this, click here to see a video of making a gorgeous pendant with a boulder opal cabochon.

For more information on boulder opals visit our 'Boulder Opal' information page.

• Cabochon
• Size: approximately 30x14mm
• Has a hardness of 5.5-6 on the Mohs scale
• Natural genuine gemstone - no treatment - as these are natural stones they may have slight surface imperfections. As opal cutters "chase the fire," following the seam through the host rock to reveal its brilliance, boulder opals sometimes have slightly uneven surfaces. These undulations are left to preserve the opal layer and its fire, avoiding unnecessary loss during cutting.
• Birthstone of October
• Healing properties: calming, comforting and happiness
• Country of origin: Australia
• Sold individually, the opal pictured is the one you will receive on purchase