This beautiful Australian free form boulder opal cabochon has a gorgeous deep blue / violet hue with incredible turquoise blue sparkles of colour. This stone has polished opal on both sides, meaning it could be set either way or set with an open back and a neat bezel or claws around the edge for a double sided pendant.

Its natural, polished surface highlights the unique patterns and depth, making it a perfect choice for a one-of-a-kind jewelry piece once set. For inspiration on setting stones like this, click here to see a video of making a pendant with a similar boulder opal cabochon.

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

• Cabochon
• Size: approximately 18 x 14mm
• 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