Free ring resizing available — just contact Geoff after purchase

Your Bag

💎

Your bag is empty

One of 3 opal triplet cutters left in the world

Natural Australian Opals, Cut by Hand

50 years of passion in every stone. Geoff is one of the last people on earth who still cuts opal triplets by hand — genuine Australian opals, direct from the source to you.

Ladies opal triplet ring with diamonds — handcut by Geoff
Ladies Diamond & Opal Ring
Mens opal triplet ring — handcut by Geoff
Men's Cushion Ring
Mens oval opal triplet ring — handcut by Geoff
Men's Oval Ring
3triplet cutters left worldwide
50+years of craft
100%natural Australian opal
5.0 / 5 Rating
643 verified reviews
🇦🇺
100% Australian
Natural opals, never synthetic
📦
Free Worldwide Shipping
Insured & tracked, every order
💍
Free Ring Resizing
Sized to fit, just ask Geoff

50 Years of Opal. One Lifetime of Passion.

Geoff from Rainbow Rock Opals with a fresh catch
Est. 1975 White Cliffs, NSW

From a Garage in Melbourne to Opal Lovers Worldwide

Geoff started cutting opal for a living over 50 years ago. What began as a fascination quickly became a lifelong passion — he's been involved in every corner of the trade, from mining rough opal at White Cliffs to cutting, polishing, and setting each stone by hand.

At just 18, he left his day job and set up shop in his dad's garage right here in Melbourne. Things took off fast — within a couple of years, he had a dozen full-time cutters working alongside him, supplying loose stones to jewellers and wholesalers around the world.

Then came the retail outlets, the one-of-a-kind pieces, and decades of supplying opal lovers around the world. After 30+ hectic years (and a global financial downturn), Geoff decided it was time to downsize and go fishing more. These days, he still gets just as excited cracking open a new parcel of rough opal as he did all those years ago.

Cheers, Geoff 🎣
50+
Years of Craft
3
Triplet cutters left worldwide
5.0★
Average Rating

Handcrafted Opal Jewellery

Every piece features a natural Australian opal, hand-cut and set by Geoff. Each one is one of a kind.

Loading Geoff's latest pieces...

What Is an Opal Triplet?

A triplet is the pinnacle of the opal cutter's craft — three precision layers fused into one stone that blazes with colour. Almost nobody still makes them by hand.

🔬

Three Layers, One Stone

A triplet is built from a dark backing (usually ironstone or black potch), a wafer-thin slice of natural opal in the middle, and a clear quartz or crystal cap on top. Each layer is hand-cut and precision-fitted — the slightest misalignment ruins the stone.

🔥

Why the Colour Blazes

The dark backing makes the opal's natural colour fire jump out dramatically — far more vivid than you'd see in a solid stone of the same quality. The crystal cap then magnifies and protects it. The result is a stone that looks like it's lit from within.

🛡️

Built to Last a Lifetime

The quartz cap makes triplets extremely hard and scratch-resistant — far tougher than an exposed solid opal. Geoff backs every triplet with a lifetime guarantee against delamination from water damage. If it ever separates, he'll replace the stone free of charge.

👐

A Dying Craft

Cutting triplets by hand requires years of practice, extreme patience, and a feel for the stone that can't be taught from a book. The opal slice must be ground to less than 1mm thick without cracking. Geoff is one of only 3 people in the world still doing this entirely by hand.

Loved by Opal Enthusiasts Worldwide

★★★★★
"Went out of his way to do an exchange and resizing for me. 10/10 customer service and such a gorgeous ring. Amazing craftsmanship."
Verified Buyer
Men's Opal Ring — Sterling Silver
✓ Verified Purchase
★★★★★
"Love the gems, always great quality. Been buying from him for a while now. His rapid responses and updates on shipping is also a plus. 10/10"
Julian
Men's Opal Ring — Sterling Silver
✓ Repeat Customer
★★★★★
"So great, looks incredible in person. Couldn't recommend Geoff enough."
Julian
Opal Pendant — 14ct Yellow Gold
✓ Verified Purchase
★★★★★
"As always, very gorgeous opals. Highly recommend!"
Julian
Men's Opal Ring — Sterling Silver
✓ Repeat Customer
★★★★★
"Crazy good quality and simply magnificent! The photos don't do these stones justice — they're even more stunning in real life."
Martin
Natural Opal Collection
✓ Verified Purchase
★★★★★
"Geoff is a true craftsman. You can tell these pieces are made with decades of experience and real love for opals. Will be back for more."
Verified Buyer
Women's Opal Ring — 14ct Gold
✓ Verified Purchase

Questions About a Piece?

Geoff knows these stones inside out — if you want to know more about a particular piece,
the opal, or how it was made, he's genuinely happy to chat.

Get in Touch