Collection: Boulder Opal Gemstones

Loose boulder opals are a collector's delight and a designer's dream — each one a natural, free-form stone with its own colour bar, pattern and shape. Choose one to collect, or select your stone and we'll design a setting that makes the most of its character. Browse the loose stones below, see finished boulder opal jewellery, or begin a custom commission with our Adelaide workshop.
Boulder Opal Gemstones