6 Most Unique Australian Opal Jewellery Pieces You'll Find Online in 2026

Australian opals are among the world's most extraordinary gemstones. Formed over millions of years in the sun-baked earth of the Australian outback, each stone carries a unique play-of-colour that no photograph can fully capture. For jewellery lovers in Australia searching for something genuinely one-of-a-kind, a piece featuring natural Australian opal is the ultimate expression of individuality.

DP Online, an Australian family-owned jeweller, has curated a collection of opal jewellery that showcases the full spectrum of what these remarkable stones can do. From classic white opal engagement rings to bold triplet statement pieces, here are six of the most unique Australian opal jewellery pieces you can buy online right now.

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1. 9ct Yellow Gold Oval White Opal Diamond Open Shank Ring

This is the piece that redefines the opal engagement ring. At its centre sits a natural white opal with a soft, milky translucence that catches the light with every movement. The open shank design — where the band breaks on either side of the stone — creates a floating effect that makes the opal appear to hover above your finger.

What sets this ring apart is the diamond pavé set into the shoulders. Round brilliant diamonds trace along the 9ct yellow gold band, adding sparkle that complements the opal's subtle fire without competing with it. Hallmarked in 9ct gold, this is a piece built to last generations.

Styling tip: Pair this ring with a simple gold chain and understated clothing. The opal is the hero — let it speak.

Perfect for: Engagement rings, milestone birthdays, or a signature right-hand ring that draws every eye in the room.

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2. 18ct Gold Titanium Steel Natural Australian Fired Triplet Ring

If you want an opal that commands attention, this is it. The centre stone is a 10x10mm faceted triplet opal sourced from Lightning Ridge, New South Wales — one of the most famous opal fields in the world. A triplet opal layers a thin slice of natural precious opal between a dark backing and a clear quartz dome, which intensifies the colour and protects the stone for everyday wear.

The colour in this stone is extraordinary. Deep electric blues, emerald greens, and flashes of crimson move across the surface as you tilt your hand. It is set in 18ct gold atop a titanium steel base, giving the ring exceptional strength while keeping it lightweight and comfortable.

Styling tip: This is a statement ring by nature. Wear it alone on the index or middle finger with minimalist bands on the other hand.

Perfect for: Evening events, date nights, or any occasion where you want your jewellery to start the conversation.

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3. Australian Opal Pendant Necklace

Sometimes the most elegant way to wear an opal is close to the heart. This 18ct gold and 925 sterling silver pendant centres a genuine Australian opal in a refined bezel setting that protects the stone while letting maximum light through.

The combination of 18ct gold and sterling silver gives this piece a two-tone versatility that works with both yellow gold and white metal wardrobes. The opal itself is cut in a classic oval shape, displaying the characteristic play-of-colour that makes Australian opals the most sought-after in the world.

Styling tip: This pendant sits beautifully at collarbone length. Layer it with a fine gold chain for a modern take on a classic look.

Perfect for: Everyday elegance, gifting (birthstones, anniversaries), and anyone new to opal jewellery who wants a wearable entry point.

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4. 9ct Yellow Gold 1 Carat Diamond Tennis Bracelet

While not an opal piece in the traditional sense, this tennis bracelet demonstrates how DP Online pairs diamonds with warm gold tones to create pieces that complement any opal collection. The 1 carat of diamonds is set in 9ct yellow gold with a classic box clasp and safety catch, measuring 17.5cm in length.

Why does it belong on this list? Because the warm yellow gold setting provides the perfect visual companion to white and black opals. Worn together, the bracelet's diamond fire echoes the opal's play-of-colour, creating a cohesive, curated look.

Styling tip: Stack this bracelet with an opal tennis bracelet or wear it alone on the wrist opposite your opal ring for balanced sparkle.

Perfect for: Bridal parties, milestone celebrations, and building a curated jewellery wardrobe around your opal investment pieces.

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5. Sunburst Locket Ring

This is perhaps the most playful and surprising piece in DP Online's collection — and one of the most unique designs you will find anywhere. The Sunburst Locket Ring is crafted in 14ct gold with a hinged locket compartment that opens to reveal a custom vanilla lip balm.

While the design itself is a conversation starter, the ring's sunburst detailing echoes the radial fire patterns seen in the finest opals. For those who love the aesthetic of Australian opal jewellery but want something more whimsical for daily wear, this ring captures that same spirit of joyful individuality.

Styling tip: Wear this on its own as a talking piece, or stack it with plain gold bands for a curated, playful look.

Perfect for: The woman who loves jewellery with a sense of humour, unique gifts, and everyday pieces that spark joy.

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6. 925 Sterling Silver Emerald Cubic Zirconia Cluster Ring

Why include a non-opal piece in an opal list? Because the deep green hues of this emerald CZ cluster ring capture the same vibrant, natural energy that makes Australian opals so captivating. Set in 925 sterling silver, the ring features a cluster of emerald cubic zirconia stones arranged to mimic the organic, asymmetrical beauty of a gemstone fresh from the earth.

The cluster setting allows light to play across multiple facets — much like the surface of a rough opal — creating depth and dimension that changes with every angle. It is an affordable way to wear the opal aesthetic without the investment of a natural gemstone piece.

Styling tip: Wear this ring stacked with your opal pieces to create a rich, layered colour palette that moves between emerald green, opal white, and gold.

Perfect for: Trend-driven jewellery lovers, budget-conscious shoppers who love the opal look, and anyone building a colourful everyday stack.

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Why Australian Opals Are Worth the Investment

Australian opals are not just beautiful — they are rare. More than 95% of the world's opals come from Australia, with the finest specimens sourced from Lightning Ridge, Coober Pedy, and Andamooka. Unlike diamonds, which are valued primarily on the 4Cs, each opal is valued on its unique pattern and colour play — no two stones are ever the same.

When you buy an Australian opal piece from a trusted jeweller like DP Online, you are buying a piece of the Australian landscape that took millions of years to form. It is a wearable piece of natural history.

Find Your Unique Australian Opal Piece

Whether you are searching for the perfect opal engagement ring, a statement pendant, or a playful everyday piece that captures the same spirit, DP Online's collection of Australian opal jewellery offers something for every style and budget. As an Australian family-owned business, every piece comes with a lifetime warranty, free shipping Australia-wide, and the confidence of ethically sourced gemstones.

Browse the full collection at dponlinesyd.com and find the opal piece that speaks to you.