Add a dash of elegance to your jewelry collection with these exquisite handcrafted Sterling Silver earrings, featuring a pair of Natural Boulder Opals sourced from Australia, complete with a 925 stamp of authenticity. As a Natural Opal Type 2, Boulder Opal is a unique gemstone that forms naturally attached to a host rock with a distinct chemical composition. Genuine Natural Australian Boulder Opals are composed of SiO2nH2O silica, forming hydrated amorphous concretions from closely packed silicon dioxide molecules that fill the crevices of Boulder Opal ironstone. These opals are a rare and precious resource, found exclusively in select regions of Queensland, Australia, and have been known to appreciate in value up to 15% annually. Additionally, these earrings are free of any artificial coloring or dyes, ensuring that their beauty is completely natural. Don't miss out on the chance to own these stunning and unique earrings. Order yours today.\ All Australian Opal Cutters Jewellery and Loose Opal items are covered by our international warranty. Please send us an note when you check out if you would like to add any modifications or changes or have a specific colour requirement for your Opal. On request and at an additional charge we are able to change or upgrade your Opal (or change the design) of any item that we offer. The item shown online may not exactly reflect the item you receive as Opals have a living play of colour that can be difficult to capture on camera.