Opals for Sale UK – Premium Australian Opals from W.M OPALS
Collections
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Black Opals
Black Opal Collection UK – Polished Black Opals Ready for Jewellery Setting...
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Crystal Opals
Crystal Opal Collection UK – Polished Loose Crystal Opals Ready for Jewellery...
Recent Blog posts
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Why Black Opal Is Becoming One of the Most Popu...
William McMellinBlack opal is more than a gemstone — it’s a piece of geological art. With rising demand, limited supply, and growing global recognition, 2026 is the perfect time to invest...
Why Black Opal Is Becoming One of the Most Popu...
William McMellinBlack opal is more than a gemstone — it’s a piece of geological art. With rising demand, limited supply, and growing global recognition, 2026 is the perfect time to invest...
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Black Opal vs Crystal Opal: What’s the Differen...
William McMellinBlack Opal and Crystal Opal are two of Australia’s most stunning gemstones, but they offer completely different looks, rarity levels, and values. This guide breaks down the key differences so...
Black Opal vs Crystal Opal: What’s the Differen...
William McMellinBlack Opal and Crystal Opal are two of Australia’s most stunning gemstones, but they offer completely different looks, rarity levels, and values. This guide breaks down the key differences so...
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What is Opal Brightness?
William McMellinDiscover how opal brightness is graded from B1 to B5 and why it’s essential when valuing black opals, white opals, crystal opals, boulder opals, rough opal, and opalised fossils. Learn...
What is Opal Brightness?
William McMellinDiscover how opal brightness is graded from B1 to B5 and why it’s essential when valuing black opals, white opals, crystal opals, boulder opals, rough opal, and opalised fossils. Learn...
My Latest Youtube Video
Rough Opal Creates Crazy GEM! - Today we cut this stunning rough opal from Lightning Ridge Australia...
What Our Customers Say
"I had an absolutely fantastic experience with W.M OPALS! The service was professional, friendly, and incredibly knowledgeable — you can tell they truly have a passion for opals. The opal I received is breathtaking — the colours and the quality are even better than I expected. Photos honestly don’t do it justice! Communication was excellent from start to finish, and my order arrived quickly and safely packaged. It’s clear that every piece is handled with care and expertise. I’ll definitely be coming back for more and recommending W.M OPALS to anyone looking for truly stunning, high-quality opals and expert service."
– Hollie Foster
"Wm opals have become my prime go to. The quality and finish of cut stones is excellent, the price points are always great value, after many purchases over a couple of years not one stone has been a disappointment,. Well packed and tracked, every purchase has arrived promptly, I have not returned any opal! Highly recommend opal Smith and trader"
– Scott Peters
"Very professional, great communication, helpful nice guy, Top finish on an opal I sent him to cut, thanks again William"
– Louie Greene