The Australian boulder opal "Evening Glow" is a stunning gemstone with a polished finish, showcasing a beautiful opalescence effect. This natural gemstone, sourced from Australia, weighs 11.4 ct and is eye clean. The boulder opal has not been enhanced and is transparent but has a unique and delicate play of colour that gives it a mesmerising glow, perfect for creating exquisite jewellery pieces.
eBay