Skip to content

Cart

Your cart is empty

Boulder Opal

Sort by

Filters

Opal earrings featuring kite-shaped boulder opals with multi-colour fire in sterling silver
Ember Stone boulder opal earrings with red colourful hues set in sterling silver.Rectangular Queensland boulder opal drop earrings
Close-up of blue and green Queensland boulder opals with natural ironstone backing
Close-up of a Queensland boulder opal earrings with vibrant flashes of colour in natural ironstoneUnique boulder opal earrings showcasing earthy tones and bright opal fire
blue and green boulder opal earrings set in sterling silverboulder opal earrings set in sterling silver with white sapphires
blue opal earrings set in white gold with diamondsblue boulder opal gold earrings from queensland
colourful matrix queensland boulder opal pendantcolourful boulder opal matrix pendant
boulder matrix opal pendantmatrix boulder opal

Boulder Opal: Australia’s Boldest Gemstone Treasure

Boulder opal is one of nature’s most extraordinary creations—a vibrant, colourful gemstone formed deep within ironstone rock in the Australian outback. Known for its durability, intense play-of-colour, and natural artistry, boulder opal is as captivating to gem collectors as it is to opal jewellery designers. Whether you’re searching for a one-of-a-kind stone, want to understand its value, or simply wondering what is boulder opal, this guide will give you everything you need to know—from its origin and...

Read More

EXPERIENCE THE BLACK STAR OPAL DIFFERENCE

Free Global Shipping

Enjoy free worldwide delivery and safe, insured shipping

Money Back Guarantee

Customer satisfaction with our 30-day money back guarantee

Tax-Free Shopping

International orders avoid 10% Australian goods & services tax

Secure Payments

Shop confidently with our secure credit card payment system

Authenticity Certificate

Gold jewellery + gems include Certificate of Authenticity

Follow Us on Instagram

@blackstaropal

Share Your Opal Moments with #BlackStarOpal

A model wearing opal rings on three fingers and an opal necklace around her neck