Joseph Bernecki — Sydney Opal Dealer, 30+ Years in Australian Opal & Gemstones

I came to Australia from Poland in the 1980s, chasing work and a better life. I didn't plan on stones. I found them — and thirty years on, Australian opals, gems and minerals are still what I do.

I'm not a jeweller. I'm a stones guy. A grader, a cutter, a polisher, and a dealer who's spent decades in the Australian opal fields and everywhere else Australia hides something beautiful in the ground. Every stone I sell has been through my hands — sourced, graded, cut, polished. For finished jewellery pieces, I work with Sydney jewellers I trust to set my stones in sterling silver and 18K gold.

From the opal fields to the market

Early on I worked the Australian opal fields — Lightning Ridge and Grawin for black opal, Coober Pedy and Mintabie for white and crystal opal, Queensland (Winton, Quilpie, Yowah) for boulder opal. I learned to read a stone before it's even cut — colour bar, pattern, body tone, where the fire will come out.

But opal was never the only thing. Australia has some of the world's most extraordinary mineral wealth, and I've chased it for decades. Zebra rock from the Kimberley. Mookite jasper from Western Australia. Rhodonite from New South Wales. Thunderegg, agate, chrysoprase, rhyolite, stichtite from Tasmania. I source direct, cut and polish in my own workshop, and sell the finished stones alongside select pieces from around the world.

25+ years at The Rocks Market, Sydney

You'll find me at the same stall I've had for 25+ years — The Rocks Market, George St, Sydney, every Saturday and Sunday, under the main canopy, 10am to 5pm. Come in, hold a stone in natural light, ask me about colour play, origin, formation, or whatever's on your mind. That's the part I love — so come and have a chat.

What I deal in

Australian opal — Black opal from Lightning Ridge, boulder opal from Queensland, crystal opal and white opal from Coober Pedy. Cut stones, natural specimens, and jewellery set by Sydney jewellers I work with.

Australian gems & minerals — Zebra rock, mookite, rhodonite, chrysoprase, rhyolite, agate, thunderegg, stichtite in serpentine, prehnite. Plus polished spheres and display pieces.

World gems & minerals — Malachite, chrysocolla, charoite, pyrite, rutilated quartz, Brazilian agate, shattuckite.

Fossils & rarities — Opalised fossil pieces, megalodon teeth, and rare specimens for collectors.

My personal guarantee

Every stone I sell is backed by my 25+ year personal guarantee. Australian-mined where I've said it is, genuine, graded by me. If something isn't right, I'll make it right. Same promise I've offered since day one.

Come and see me at The Rocks Market this weekend, or browse the full collection online.

Visit me in person

The Rocks Market, Sydney
George Street, The Rocks NSW 2000
Saturdays & Sundays, 10am–5pm
Under the main canopy — look for the opal stall. No appointment needed; bring the stone you're curious about or come and look at mine.

More from me

If you want a deeper look before you buy, I've put a few short guides together:

• Buying an Opal — what to look for, solid vs doublet, certification, shipping and returns.
• Opal Care — how to keep yours brilliant for generations.
• My Personal Guarantee — what stands behind every piece I sell.

— Joseph Bernecki