Opal is one of the most fascinating gemstones on Earth — known for its brilliant flashes of colour that seem to shift with every movement. Whether you’re drawn to it for its beauty, energy, or symbolism, opal has a story that captures almost everyone’s attention. But what exactly is opal used for today, and why does it hold such lasting appeal?
This guide will walk you through everything you need to know about opal — from its properties to its practical uses and its role in jewellery. If you’ve ever wondered whether opal is worth owning or wearing, this blog will give you all the answers in one place.
What Is Opal?
Opal is a unique gemstone made from hydrated silica, containing tiny amounts of water trapped within its structure. Unlike most gems that form as crystals, opal has an amorphous (non-crystalline) structure. This is what allows light to scatter through it, creating the mesmerising “play of colour” that opal is famous for.
The colours you see — flashes of green, red, orange, blue, and violet — come from the diffraction of light through microscopic silica spheres. No two opals are ever exactly alike, making each stone a one-of-a-kind creation.
There are two main types of opal:
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Precious Opal – Displays vivid colour play and is used in fine jewellery.
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Common Opal (Potch) – Has little or no play of colour, but still appears in lovely pastel shades.
According to the Gemological Institute of America (GIA), Australia produces over 90% of the world’s opal, particularly from Lightning Ridge, Coober Pedy, and Andamooka. Other sources include Ethiopia, Mexico, and Brazil.
Opal’s Properties
Opal isn’t just pretty — it’s fascinating from a scientific and symbolic perspective.
Physical Properties:
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Hardness: 5.5–6.5 on the Mohs scale (so it’s softer than quartz).
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Composition: Hydrated silicon dioxide (SiO₂·nH₂O).
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Water Content: Usually 3–21%.
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Formation: Created when water carrying silica seeps into rock cracks, then evaporates, leaving behind silica deposits.
Symbolic Properties:
Throughout history, opal has been seen as a stone of creativity, inspiration, and protection. The Romans called it opalus, meaning “precious stone,” and believed it brought luck. In modern crystal culture, opal is said to enhance emotional clarity and self-expression — though it’s important to note that these are symbolic beliefs, not medical facts.
What Is Opal Used For?
1. Jewellery
This is by far the most common and beloved use of opal. Because of its unique play of colour, opal makes for stunning rings, earrings, necklaces, and brooches. Designers love how opal’s ever-changing colours make every piece feel alive.
Fun fact: The global opal jewellery market has grown by more than 20% since 2020, according to jewellery trend reports, thanks to renewed interest in natural and ethically sourced gems.
However, because opal is softer than many other gemstones, it’s usually best for jewellery pieces that aren’t exposed to heavy wear — such as pendants or earrings.
2. Collecting
Gem enthusiasts and geologists often collect opal for its scientific interest and natural beauty. High-quality opals — especially black opals from Lightning Ridge — can sell for over £10,000 per carat, making them valuable additions to any collection.
3. Decorative Art
In luxury settings, opal is sometimes inlaid into watch dials, sculptures, or ornaments. Its vibrant play of colour adds a unique and luxurious finish that can’t be replicated with any other stone.
4. Metaphysical Uses (With Caution)
Some people believe opal can boost creativity or emotional balance. It’s often associated with artistic expression and self-awareness.
However, while it’s fine to enjoy opal for its symbolic meaning, it should never replace professional medical or psychological treatment. If you’re using crystals for wellness, always pair them with evidence-based care.
Should You Use Opal?
Yes — if you appreciate beauty, uniqueness, and timeless elegance, opal is absolutely worth it. It’s a gemstone that feels personal, expressive, and full of character.
Because each stone is different, wearing opal feels like wearing a small piece of nature’s art. It also pairs beautifully with precious metals like silver, gold, or platinum.
But remember: opal requires gentle care. Avoid harsh chemicals, heat, or prolonged water exposure, as these can damage the stone’s surface.
Should You Wear Opal for Jewellery?
Wearing opal in jewellery is a wonderful idea, but there are a few things to keep in mind.
Opal’s softness means it’s best for earrings, necklaces, and pendants, rather than rings or bracelets that might take more knocks. If you do want an opal ring, consider protective settings like bezels to keep the stone safe.
Modern jewellers also use doublets and triplets — layered opal stones that are more durable and affordable while still maintaining opal’s signature beauty. These are excellent options if you want something practical and visually striking.
According to The Jewellery Editor, opal jewellery has become a top trend again due to its versatility and natural aesthetic — especially among people seeking ethical, one-of-a-kind gemstones.
Conclusion
Opal is more than just a gemstone — it’s a symbol of creativity, individuality, and natural wonder. From fine jewellery to collectors’ pieces, opal continues to inspire people around the world.
Its uses stretch from art and fashion to personal expression, and even to spiritual symbolism (if you enjoy that side of things). Whether you wear it for its colours or its charm, opal never fails to make a statement.
Just remember: while opal may require a little extra care, its beauty and uniqueness make it a gemstone worth cherishing.
FAQ’S
Is opal rare?
Some types of opal, like black opal from Australia, are very rare and valuable. Common opal, however, is more abundant and affordable.
Can I wear opal every day?
It’s possible, but you’ll need to be gentle with it. Avoid wearing opal during activities where it might get scratched or damaged.
Is opal used for healing?
Opal is believed by some to boost creativity and emotional clarity, but these effects aren’t scientifically proven. Always rely on professional care for health concerns.
What metal looks best with opal?
Silver and white gold often complement opal’s bright flashes, though yellow gold can create a beautiful warm contrast.
Is opal worth buying?
Yes! Whether for jewellery, collecting, or decoration, opal’s one-of-a-kind colour and charm make it a worthwhile gemstone to own.