October-born folk get a rare bit of luck. Instead of one birthstone, they get two: opal and tourmaline. Both are gloriously colourful. They tell very different stories. And you can buy either on almost any budget here in the UK. The hard part is picking between them.
Opal: The Stone of Many Colours
Opal is strange and lovely. It isn't a crystal in the ordinary sense. It's hardened silica gel, made of tiny spheres packed together, and when light hits those spheres at the right angle you get that famous flash of colour across the surface. Gemologists call it play-of-colour. Everyone else just calls it magic.
The word opal comes from the Sanskrit upala, meaning precious stone, and later the Latin opalus. Pliny the Elder wrote about it two thousand years ago, saying a fine opal held "the fire of carbuncle, the brilliant purple of amethyst, and the sea-green of emerald, all shining together." Not a bad description. Still fits.
Where Opal Comes From
Most of the world's gem-quality opal still comes out of Australia (Lightning Ridge for black opal, Coober Pedy for white and crystal, Queensland for boulder). But the market shifted hard in 2008 when Ethiopian Welo opal was discovered in Wollo Province. Welo opal is lighter, cleaner, often fully transparent, and far more affordable than Australian material. It's why opal jewellery has become so much more accessible in the UK in the last fifteen years. Smaller amounts come from Mexico (fire opal), Brazil, Peru (the lovely pink opal), and the United States (Nevada and Oregon).
The Opal Varieties You'll See in UK Jewellery
Ethiopian Welo Opal. Clear to milky body colour with vivid play of green, red, orange and blue. Light on the hand. Widely used in silver and gold vermeil pieces. You'll find hundreds of our rings, pendants and earrings using Welo opal from roughly £20 up to £900 depending on carat and setting.
Australian White (Milk) Opal. Pale body colour with a softer, more pastel play. Elegant and traditional. Pricier than Welo for the same carat weight.
Australian Black Opal. The most prized variety. Dark body colour makes the play-of-colour pop like a stained-glass window. Serious money, usually four figures and up even in small sizes.
Boulder Opal. Thin opal veins still attached to the ironstone they formed in. The brown-and-rainbow contrast is beautiful and each stone is one-of-a-kind.
Fire Opal. Transparent orange, red or yellow, with or without play-of-colour. Mexican fire opal is the classic source. Our 9K Yellow Gold Crimson Fire Opal range sits in the £160 to £300 bracket.
Pink Opal. Peruvian in origin, soft blush pink, usually opaque with no play-of-colour. Lovely in cabochon rings and pendants, often very affordable (£30 to £80 in silver).
Hyalite Opal. Nearly colourless, water-clear, sometimes glowing under UV light. A gentler, more unusual look.
The Meaning and Myth of Opal
Across cultures opal has stood for hope, truth, loyalty and emotional honesty. The Romans believed it brought good fortune because it contained the virtues of every coloured gemstone at once. In Arabic legend it was said to fall from the sky in flashes of lightning. In mediaeval Europe, blonde women wore opal necklaces to keep their hair from fading. A strange one, that.
There's one old superstition you'll hear: that opal is unlucky. That rumour mostly traces back to a single novel, Sir Walter Scott's Anne of Geierstein (1829), where an opal plays a sinister role in the plot. Opal sales reportedly collapsed across Europe in the years that followed, and the jewellers never quite forgave him. The stone itself has done nothing wrong.
What Opal Is Worth in the UK
Opal is priced on four things: body tone (black > dark > light > white), play-of-colour (brightness, pattern, dominant hue), transparency, and size. Here's what honest money gets you right now:
| Opal type | Entry (silver / vermeil) | Mid-range (9K gold) | Fine (14K–18K gold / platinum) |
|---|---|---|---|
| Pink Opal | £25–£70 | £120–£250 | £300+ |
| Ethiopian Welo Opal | £30–£150 | £180–£500 | £600–£1,500 |
| Mexican Fire Opal | £50–£180 | £200–£400 | £500–£1,200 |
| Australian White Opal | £120–£300 | £350–£800 | £900–£2,500 |
| Boulder Opal | £180–£500 | £500–£1,200 | £1,500–£5,000 |
| Australian Black Opal | £400–£900 | £1,200–£3,000 | £4,000+ |
Those bands are indicative, drawn from live TJC stock and standard UK trade pricing at the time of writing, and reflect pieces in reasonable everyday sizes (1–3 ct for rings and earrings, 2–8 ct for pendants). For investment-grade black opal with top play, prices climb fast.
Caring for Opal in a British Home
This is where UK-specific advice matters, and most guides skip it. Opal contains 3% to 20% water. Our homes, especially from October through March when the central heating comes on, are dry. Really dry. That matters more than any superstition.
- Keep opal in a soft pouch, not loose in a jewellery box with harder stones that will scratch it (opal is 5.5 to 6.5 on the Mohs scale, softer than quartz).
- Avoid long stretches in a hot airing cupboard or on a sunny windowsill. Rapid temperature or humidity swings can craze the stone.
- Take it off before showering, swimming, cleaning with chemicals, or applying hairspray or perfume.
- Clean gently with a soft damp cloth. No ultrasonic or steam cleaners, ever.
- If your opal lives on your finger, treat it the way you'd treat a vintage watch. Mindful rather than reckless.
Tourmaline: The Rainbow Mineral
Tourmaline is the gemstone equivalent of a Dulux colour chart. Egyptian legend has it that tourmaline travelled from the centre of the earth up through a rainbow, picking up every colour on its way. Mineralogists have a drier explanation (a complex boron silicate, with trace elements of iron, manganese, copper, lithium and chromium swapping in and out of the crystal lattice), but the result is the same. No other gem family offers this much variety.
For a long time, tourmaline was mistaken for other stones. Red tourmaline was sold as ruby for centuries. The Crown of St Wenceslas in Prague Castle contains a 250-carat "ruby" that turned out to be a tourmaline when it was finally tested in the 1800s. Catherine the Great herself owned a 255-carat "ruby" (now called Caesar's Ruby) that was later identified as a rubellite tourmaline, gifted to her by King Gustav III of Sweden in 1777.
The Tourmaline Colour Range
Rubellite. The pink-to-raspberry-red variety. The richest colour commands the highest prices.
Indicolite. Blue tourmaline, from pale sky to deep teal. Rare. Often sourced from Mutuca in Brazil, which is what you'll see in our Rhapsody platinum range.
Verdelite (green tourmaline). Forest green to vivid grass. Nigerian green tourmaline is a popular everyday variety.
Pink Tourmaline. The softer sibling of rubellite. Lighter, more romantic, very wearable.
Watermelon Tourmaline. Pink core, green rim. Sliced to show both colours, this is one of the most Instagrammable gems around.
Canary Tourmaline. Bright lemon-yellow, often from Malawi or Zambia. Rare and bold.
Paraiba Tourmaline. The one everyone whispers about. Electric neon-blue to turquoise, coloured by copper, first discovered in Paraíba state, Brazil in 1989. The rarest and most expensive tourmaline on earth. Fine Paraiba can out-price diamond per carat.
Chrome Tourmaline. A vivid emerald green, coloured by chromium rather than iron. Often confused with tsavorite.
Schorl. The black opaque variety. Not a fine-jewellery stone, but widely used in meditation jewellery.
Where Tourmaline Is Mined
Brazil is the historic heart of tourmaline (Minas Gerais for Indicolite and Mutuca, Paraíba for the famous neon variety). But today much of the supply comes from Africa: Nigeria for green, Mozambique for pink and copper-bearing material, Madagascar for colour-change, Malawi for canary, Namibia for assorted hues. Afghanistan, Pakistan and Sri Lanka add smaller amounts.
What Tourmaline Means
Tourmaline's symbolism follows its colours. Pink and rubellite are linked to the heart, love and emotional balance. Green stands for growth and the restorative calm of nature. Blue indicolite is tied to clarity, truth and inner peace. Black schorl has a long reputation as a protective stone, said to deflect negativity.
The real physics behind tourmaline is more interesting than any of the folklore. The stone is both pyroelectric and piezoelectric. Heat it or put it under pressure and it generates a tiny electrical charge. Dutch traders in the 18th century used warmed tourmaline crystals to draw ash out of the bowls of their clay pipes, and called them aschentrekkers, "ash-pullers". A real thing, not folklore.
What Tourmaline Is Worth in the UK
Tourmaline is priced on colour saturation, clarity and variety first, carat weight second. The intensity and purity of the hue matters more than almost anything else.
| Variety | Entry (silver / vermeil) | Mid-range (9K gold) | Fine (14K–18K / platinum) |
|---|---|---|---|
| Multi-Tourmaline (mixed) | £30–£120 | £150–£300 | £400+ |
| Green Tourmaline (Nigerian) | £30–£150 | £200–£500 | £600–£1,500 |
| Pink Tourmaline | £50–£200 | £250–£700 | £800–£2,000 |
| Canary Tourmaline | £100–£250 | £300–£700 | £800–£2,500 |
| Rubellite | £150–£400 | £500–£1,500 | £1,500–£6,000+ |
| Indicolite (blue) | £200–£500 | £600–£1,800 | £2,000–£8,000 |
| Chrome Tourmaline | £200–£500 | £600–£1,500 | £2,000+ |
| Paraiba Tourmaline | £800+ | £2,500+ | £10,000+ per ct (fine neon) |
These bands are indicative and based on current TJC stock. A note on the top end: fine Rubellite in platinum (like our Rhapsody 950 range) sits around £1,500, and quality Mutuca Indicolite in platinum settings reaches £600 and up. These are the pieces to look at if you want a tourmaline that will hold value.
Caring for Tourmaline
Easier than opal, happily. Tourmaline is 7 to 7.5 on the Mohs scale, close to amethyst, and it has no water content to worry about. The rules are shorter:
- Warm soapy water and a soft brush are fine. Rinse well.
- Avoid ultrasonic cleaners for stones with liquid inclusions (ask the jeweller if you're not sure).
- Steam cleaning is usually fine for untreated tourmaline but skip it for Paraiba, Rubellite or anything heavily included.
- Store separately from diamonds and sapphires, which will scratch it over time.
- Don't wear it when gardening or doing DIY. A hard knock on a hard surface can chip the edge of a facet.
Opal or Tourmaline: Which Suits You?
Honestly, both. But if you're choosing one piece as a gift or a self-treat, here's how we'd think about it:
A soft, dreamy, "no two the same" look: Opal (especially Welo or Boulder)
A hard-wearing stone for daily rings: Tourmaline (Pink or Green)
The most colour variety in one piece: Multi-Tourmaline cluster designs
A statement centre stone with heritage: Rubellite or Indicolite
Something soft and romantic under £100: Pink Opal or Pink Tourmaline in silver
The showiest flash of fire: Australian Black Opal or Mexican Fire Opal
The rarest gem in the family: Paraiba Tourmaline
A gender-neutral everyday piece: Hyalite Opal or Green Tourmaline
What to Ask Before You Buy
Most guides tell you to "buy from a reputable jeweller" and leave it there. Not useful. Here's the actual list, whether you buy from us or anyone else:
- Is this stone natural? Synthetic opal and glass-filled tourmaline both exist. A proper jeweller will tell you plainly.
- Has it been treated? Most tourmaline is heat-treated to improve colour, which is standard and stable. Opal is rarely treated but Ethiopian Welo opal is sometimes smoke-impregnated to darken the body. Ask.
- Where was it mined? Not every seller will know, but the better ones will.
- What's the carat weight and the stone's dimensions in millimetres? So you can picture the size on a finger.
- What's the setting metal? 9K, 14K, 18K gold all behave differently in daily wear. Vermeil is lighter on the budget but needs more care than solid gold.
- Is there a hallmark? All gold and silver pieces sold in the UK over the weight threshold must be hallmarked by one of the four Assay Offices (London, Birmingham, Sheffield or Edinburgh). Your legal protection.
- What's the return policy? Birthstone jewellery is often a gift. Make sure the recipient can swap sizes.
Anniversary and Zodiac Meaning
Beyond birthdays, both stones carry anniversary meaning:
Opal: Opal is the modern gift for the 14th wedding anniversary.
Tourmaline: Tourmaline is the gift for the 8th anniversary (pink tourmaline specifically for the 18th in some lists).
For zodiac wearers, opal is associated with Libra (23 Sep – 22 Oct) and sometimes Scorpio. Tourmaline, especially pink, is linked to Libra and Scorpio, with green tourmaline often tied to Capricorn. October's birth flowers, in case you want to pair them with a bouquet, are the marigold (warmth and creativity) and the cosmos (harmony).
Gift Ideas by Budget
- Under £50: A Pink Opal silver cabochon ring, or a Multi-Tourmaline silver cluster.
- £50 – £150: An Ethiopian Welo Opal pendant in 18K gold vermeil, or a Pink Tourmaline halo ring.
- £150 – £500: A 9K yellow gold Fire Opal and diamond solitaire, or a Multi-Tourmaline floral bracelet.
- £500 – £1,500: A 14K gold Welo Opal five-stone ring, or Rhapsody 950 platinum Indicolite with diamond accents.
- £1,500 and up: A Rhapsody platinum Rubellite halo ring. The kind of piece you'd keep in the family.
- Not sure on size? Pendants and earrings sidestep the ring-size problem. Our pendants come on an 18-inch chain.
