6.97ct Boulder Opal - 13 x 17.5 x 4.5mm

Boulder Opal is a variety of opal that has formed in the gaps and cracks in solid rock. The Boulder Opal from Australia is mostly found in Queensland and the rock is often ironstone and petrified wood. Boulder Opal can be black, white, light and crystal or a combination of them all making it very unique. The top quality Boulder Opal is arguably the very best opal in the world. Offering superior clarity and colour play with the most vivid colour opal can produce.  The highest grades in Boulder Opal is Boulder Crystal and Black Boulder Opal.

At WIRRU Opal we only sell natural solid Australian opals. No treatment.
All our opals come with a certificate of authenticity, showing a photo of the piece, the dimensions, the region of origin, the type of opal, the prominent colours and its weight in carats.

We ship our opals world-wide. All orders are sent with tracking and insurance, upgrade to Express available at checkout. When you place an order, we will estimate shipping and delivery dates for you based on the shipping options you choose. Please be aware the parcel may be subject to import taxes, customs duties, and/or fees imposed by the destination country. These charges are typically due once the package arrives in the destination country. This may result in the buyer having to pay additional charges which are not included in the total price displayed at checkout.

At WIRRU Opal, it is paramount to us that you are 100% satisfied with every piece you purchase. If you are not satisfied with your item for any reason at all, you can return it within 14 days of receiving your order. If you decide to return the product, please contact us as soon as possible for instructions. You are responsible for covering the cost of return shipping via the same tracked shipping method as delivery, as well as appropriate insurance at the price you purchased the item(s) at. You will be refunded the cost of the item(s), excluding the delivery and insurance fees.