You can find the world's best black opals primarily in Lightning Ridge, New South Wales (NSW), Australia, the renowned source for this rare and valuable gem, though other NSW fields also produce it; you can visit the town for fossicking or buy from miners and dealers online and in-store.
Way out in the scrubs of northern New South Wales, nearly 800 kilometers inland from the east coast, lies the Outback opal mining town of Lightning Ridge. It's a fair bit off the beaten track, but it's worth the detour. Lightning Ridge is the only place in the world where the elusive black opal is found.
Value. By comparison, black opals are the most valuable form of opal – due to their dark body tone and the resulting vibrant play of colour. Top of the range gem quality black opal can fetch prices up to AUD $15,000 per carat.
A 1-carat black opal's price varies wildly, from around $50 to over $15,000 per carat, depending heavily on its body tone (darkness), brightness, color flashes (fire), pattern, clarity, and origin (like Lightning Ridge). While lower quality black opals can be inexpensive, top-tier, gem-quality stones with vibrant color are extremely rare and command premium prices, with some rare examples valued at thousands or tens of thousands per carat.
Today, Coober Pedy (SA) is the main producer of white opal, though in recent years this field has expanded and all types of opals are found. Other centres in SA include Andamooka and Mintabe. Lightning Ridge (NSW) is renowned for black opal and formerly White Cliffs was a large producer of high quality opal.
Most black opal gemstones are found in Australia and our black opal is the only type to be found in nobbies, or nodules. Black opal is rarely found in other locations.
Slowly rake through the dirt. Opal is generally found in greyish, blueish, or black coloured potch. Potch is colourless opal, it still has a glass like appearance to it, as does opal. So look for the blue and grey rocks, and any pieces which look shiny in the sun – that'll be the light reflecting off the opal!
Real opals have natural variations in pattern, body tone, and backing. If you're examining a loose stone or jewelry piece, look for signs like a perfectly flat line between layers (a sign of a doublet), a glassy surface (often seen in triplets), or a flawless black backing (another indicator of a composite).
If you can afford to own a phone or a car, or even to buy a hamburger, you can afford an opal. How rare is opal? Silica is one of the most common minerals on the planet, but precious opal is very rare – far more rare than diamonds.
Black opals, with dense silica, reflect less light, enhancing their dark appearance. In contrast, white opals scatter light more, resulting in a lighter hue. Boulder opals and matrix opals, which include host rock, affect light transmission through their composite nature.
The Halley's Comet Opal is the largest uncut black opal in the world, according to the Guinness Book of World Records. It is so named because it was unearthed in 1986, a year when Halley's Comet could be seen from Earth.
From a long-term perspective, opals are great investments. If you look at the last 50 years of black opals, they have steadily increased over time. We have never seen a decrease in the value of gem-quality black opals.
Also known as 'milk' or 'milky' opals, Australian white opals are distinguished by their pale white or light body tone, indicated in the below chart under “light opal”. As with any kind of opal, white opals can display any colour of the spectrum in a beautiful play of colour.
Coober Pedy, South Australia
Coober Pedy produces the bulk of the world's white opal. The opal mining fields of Coober Pedy lie in the outback of South Australia, Stuart Range, 750 km north of Adelaide.
In addition to aesthetic and quality factors, the price of opal depends on the type of opal. For instance, white opal is common and costs between $10 and $150 per carat. Black opal is the most valuable opal, ranging between $50 and $10,000 per carat.
While many hunters may not disclose their exact earnings, estimates suggest that television appearances can significantly boost their income. On average, outback opal hunters can earn between $1,000 to $5,000 per episode, depending on their role and the show's popularity.
Who Should Not Wear Opal Jewelry? It is advised that people who have Aries, Leo, Scorpio, and Cancer zodiac signs should not wear these gems. If you do, you might have to face the side effects.
Painite : Not just the rarest gemstone, but also the rarest mineral on earth, Painite holds the Guinness World Record for it.
A 1-carat black opal's price varies wildly, from around $50 to over $15,000 per carat, depending heavily on its body tone (darkness), brightness, color flashes (fire), pattern, clarity, and origin (like Lightning Ridge). While lower quality black opals can be inexpensive, top-tier, gem-quality stones with vibrant color are extremely rare and command premium prices, with some rare examples valued at thousands or tens of thousands per carat.
Many specimens of opal display fluorescence under shortwave (100nm - 280nm wavelength) ultraviolet light. A smaller number will display fluorescence under a longwave (315nm - 400nm wavelength) ultraviolet lamp. Some specimens do not show noticeable fluorescence at all.
Man-made opals that are grown in a laboratory are made up of the same chemical composition as their natural counterpart, which includes a mineral called hydrated silica.
Limited Supply: Black opals are incredibly rare, with the majority of them coming from Lightning Ridge, Australia. The limited supply ensures their long-term value. Historical Performance: Over the years, black opals have demonstrated consistent value appreciation, making them a reliable investment choice.
When identifying a genuine opal, particularly a precious Australian stone, look for:
Yes, you can mine for opals in Lightning Ridge, but you need the proper authorization like an Opal Prospecting Licence or Mineral Claim from NSW Resources, though visitors can enjoy public fossicking sites for a fee or for free in designated areas. Professional mining involves digging shafts for rare black opal, while visitors can "noodle" (fossick) for smaller pieces in gravel dumps or at tourist-friendly spots like the Outback Opal Mine.
Situated on the Bruce Highway on the beautiful Sunshine Coast, Opals Down Under has one of the finest selections of opals you'll see anywhere in the world. This magnificent display of opals will have your jaw dropping, your eyes sparkling, and give you opal fever in no time!