world of elegance with our Sterling Silver earrings featuring exquisite Natural Boulder Opals from Australia. Stamped with the prestigious 925 mark, these opulent pieces are a testament to craftsmanship. Embracing the Opal industry's classification as a Natural Opal Type 2, these opals are intricately attached to a host rock with a unique chemical composition. Mined exclusively in the remote regions of Queensland, Australia, these opals are a rare find, known to appreciate in value by up to 15% annually.