Opal Meaning & Symbolism: White, Black and Every Colour

Opal has traditionally been associated with hope, creativity and imagination — its shifting colours long read as a symbol of change and possibility. Different opals have picked up different associations over time: white opal with clarity and calm, black opal with depth and mystery, blue with serenity, green with renewal. These meanings belong to folklore and cultural tradition rather than fact, and that's how we present them.

What opal has traditionally symbolised

Opal's symbolism has always followed from the thing it visibly does. A gem whose colours shift with every movement invites being read as a stone of change — of possibility, of the unfixed, of things not yet settled. Roman writers held it in high regard. Medieval Europe associated it with clear sight. Nineteenth-century jewellers loved it. Across those traditions, the recurring themes are hope, creativity and imagination.

None of this is a claim about what opal does. It's a record of what people have believed about it, which is a different and more honest thing.

The opal superstition — and where it came from

You may have heard that opal is unlucky unless it's your birthstone. It's a persistent belief, and it has a surprisingly traceable origin.

Before the 1820s, opal carried overwhelmingly positive associations. The reversal is widely attributed to Sir Walter Scott's 1829 novel Anne of Geierstein, in which a character's opal is connected to her downfall. The book was enormously popular, the association stuck, and opal sales across Europe reportedly suffered for decades afterwards.

So the "bad luck" tradition isn't ancient at all — it's a piece of nineteenth-century literary fallout. Jewellers have been cheerfully ignoring it ever since.

White opal meaning

White opal — the pale, milky-bodied type — has traditionally been linked to clarity, calm and gentle optimism. The softness of its colour play, diffused rather than vivid, seems to have shaped the association. It's the most common opal and the one most people picture when they hear the word.

Black opal meaning

Black opal, with its dark body tone, carries associations of depth, mystery and intensity. Colour reads more strongly against a dark background, so the same flashes appear far more dramatic — and the symbolism has followed the visual. It's the rarest and most valuable of the main opal types, which has only reinforced its reputation.

What the flash colours have meant

Because a single opal can throw several colours, traditional meanings tend to attach to whichever dominates.

• Blue — serenity and stillness. The most common flash colour, and the least expensive.
• Green — renewal, growth, balance.
• Orange — warmth and confidence. Uncommon, and valuable.
• Red — energy and vitality. The rarest flash colour of all, and the most prized. A stone showing broad red play sits at the very top of the opal market. See our guide to opal prices for why.

Opal as the October birthstone

Opal is October's birthstone, which layers a further meaning onto it: it's the stone people give to mark an October birthday. That association is modern and practical rather than mystical, and it's probably the most common reason anyone buys opal today. Read what the October birthstone is for the full picture, including tourmaline, October's second stone.

Opal is also the stone for October-born Libras and Scorpios — both signs straddle the month, so each has two stones.

Opal in Australia

There's one more layer of meaning that matters particularly here. Opal is Australia's national gemstone, drawn from Coober Pedy, Lightning Ridge and the ironstone country of Queensland. For Australian buyers that's not an abstract association — it's local, and it's part of why opal resonates the way it does. Read our article on Australia's national gemstone.

A note on how we talk about meaning

Everything above is folklore, tradition and cultural history. We share it because it's genuinely interesting and because it's part of why people are drawn to particular stones — not as a claim that opal does anything. Buy an opal because you love how it looks. That's reason enough, and it's the honest one.

Shop opal jewellery

Browse our opal jewellery collection in 925 sterling silver, with white and black opal set in rings, earrings, necklaces and bracelets. For an October birthday, start with October birthstone jewellery, or read our complete guide to opal.

Frequently asked questions

What does opal symbolise?

Opal has traditionally been associated with hope, creativity and imagination, its shifting colours long read as a symbol of change and possibility. White opal is linked with clarity and calm, black opal with depth and intensity. These are cultural and folkloric associations rather than statements of fact.

Is opal really bad luck?

No — and the superstition is far more recent than most people assume. Opal carried positive associations for most of its history. The "bad luck" idea is widely traced to Sir Walter Scott's 1829 novel Anne of Geierstein, in which an opal features in a character's downfall. The novel was hugely popular, the association stuck, and it has been ignored by jewellers ever since.

What is the difference between white opal and black opal meaning?

The traditional associations follow the appearance. White opal, with its pale milky body and soft colour play, is linked to clarity, calm and gentle optimism. Black opal, whose dark body tone makes its flashes appear far more vivid, is linked to depth, mystery and intensity.

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Written by the Irosk team. Irosk is a family-owned Australian jewellery brand based in Brisbane, specialising in 925 sterling silver gemstone jewellery. We've been crafting birthstone pieces since 2021.