Born in October? You have two birthstones to pick from, not just one. The classic October birthstone is opal, a stone famous for flashes of rainbow color inside a milky base. Tourmaline joined the list in 1912, and it comes in almost every color you can picture.
Both stones share the spotlight because they cover so much ground. Opal leans soft and pearly. Tourmaline leans bold and saturated. There's a shade for nearly every taste.
Below, we cover what each stone means, the colors tied to fall, and how to wear those shades in solid 14K gold. We'll also show you where cubic zirconia can capture each look without the upkeep a natural stone needs.
- October has two birthstones, opal and tourmaline, so there's no single "right" choice.
- Opal ranges from milky white with rainbow flashes to rare, dark black opal. Tourmaline spans pink, green, blue, and watermelon tones.
- You can wear October's birthstone colors in solid 14K gold with cubic zirconia cut in matching hues, no fragile natural stone required.
What Is the October Birthstone?
October actually has two official birthstones: opal and tourmaline. Opal has held the spot since ancient times. It was prized by the Romans, who linked it to hope and good luck.
Tourmaline was added in 1912 by the National Association of Jewelers. Opal is soft and can chip with rough wear, so buyers wanted a sturdier second option. Together, the pair gives October babies a wide range of colors to choose from.
The birthstone tradition itself goes back centuries, tied to an old belief that wearing your month's stone brings good luck. Opal earned its spot on the list long before tourmaline was even classified as its own mineral. That history is part of why opal still feels like the "classic" October pick today.
October's stones also line up loosely with two zodiac signs. Libra, which runs through most of the month, is often linked to opal's softer tones. Scorpio, which starts in late October, is sometimes paired with tourmaline instead. October's birth flower, the marigold, rounds things out with its own warm orange and gold shades.
Opal Meaning and Color
Opal's calling card is "play-of-color," the shifting flashes of red, blue, and green you see when light hits it at different angles. Ancient cultures believed opal held a bit of every gem's power inside one stone. Today it's linked to hope, creativity, and purity.
Common opal is milky white or pale blue with soft color flashes. Fire opal glows orange to red and often has little to no play-of-color. Black opal, the rarest type, has a dark body that makes its color flashes look especially bright.
Some cultures once saw opal as a symbol of good fortune, while others avoided it out of superstition about its fragility. Those old superstitions have mostly faded. Today opal is simply valued for its one-of-a-kind color patterns, and opal jewelry pairs beautifully with warm metals like yellow and rose gold, which echo its soft glow.
Tourmaline: October's Modern Birthstone
Tourmaline is famous for coming in nearly every color on the wheel. Pink is the classic pick for October's birthstone, and it symbolizes love, compassion, and calm. Green and blue tourmaline are prized too, especially in deeper, richer tones.
One rare type, watermelon tourmaline, grows with a pink center and a green edge in the same stone. Because tourmaline is harder and more durable than opal, it wears well in rings and bracelets that see daily use.
Pink tourmaline sometimes goes by the name rubellite when it's a deep, saturated red-pink. Blue tourmaline is called indicolite, and it's rarer than the pink shades most people picture for October. These names come from gemology, not marketing, so they're worth knowing if you're shopping around and comparing colors.
Birthstone Colors: Opal vs. Tourmaline
If you're choosing between the two, color and durability usually decide it. Here's how the classic October birthstone color options stack up side by side.
| Stone | Classic color | Also comes in | Symbolizes |
|---|---|---|---|
| Opal | Milky white with rainbow flashes | Black opal, fire opal, boulder opal | Hope, creativity, purity |
| Tourmaline | Pink | Green, blue, colorless, watermelon | Love, compassion, calm |
Neither color is more "correct" for October than the other. Many birthstone shoppers pick based on which shade suits their skin tone and wardrobe, not which stone came first on the list. A cool pink pairs naturally with white gold, while a warmer blush pink or a clear stone leans into yellow or rose gold.
Same Stones for Every October Birth Date
The exact day makes no difference. An October 6, an October 10, and an October 20th birthday all draw on the same two stones, because birthstones run by month rather than by day.
That makes a birthstone-color piece an easy gift for anyone born in the month, at any age. Only the shade, the metal, and the styling change from one person to the next.
Wearing October's Colors in 14K Gold
Golden Planet pieces are solid 14K gold, made to order, and set with cubic zirconia rather than natural gemstones. That means you can wear opal's soft, pearly sparkle or tourmaline's pink glow in a stone that's cut for everyday durability instead of a fragile natural one.
A clear, brilliant-cut cubic zirconia echoes opal's light-catching quality without the extra care a natural opal needs. If you're set on the opal birthstone specifically, a milky white or pale blue-white stone mimics that soft glow. A blush or rose-toned stone captures tourmaline's classic pink in a piece you can wear on repeat.
Which Gold Tone Pairs Best?
Rose gold warms up pink tourmaline tones and feels soft against most skin shades. Yellow gold gives a clear stone an extra glow, closer to opal's warm milky base. White gold keeps the focus on the stone's color with a cooler backdrop. Our guide to yellow, white, and rose gold breaks down which tone suits your skin and style.
Rings and pendants are the most popular ways to wear a birthstone color, since the stone sits close and stays visible. Browse our 14K Gold Rings collection for pink and clear stone settings, or check the 14K Gold Necklaces collection for pendant styles that layer well.
Birthstone-color jewelry also makes an easy, personal gift. A ring or pendant in someone's birthstone shade feels thoughtful without being over the top, and it works for a birthday, an anniversary, or just because. Many buyers layer a pink-stone piece with a plain gold chain or band for a look that doesn't try too hard.
Frequently Asked Questions
What is the true birthstone for October?
October has two official birthstones, opal and tourmaline. Opal is the older, traditional choice. Tourmaline was added in 1912 as a sturdier alternative, so neither one is more "true" than the other. Both are widely available in jewelry today, so you're not limited by the calendar.
Why does October have two birthstones?
Opal is soft and can chip with everyday wear. When jewelers standardized the birthstone list in 1912, they added tourmaline as a tougher option so October-born buyers had a durable everyday choice too.
Is October's birthstone pink or opal?
Both, depending on which stone you mean. Opal is usually milky white with rainbow flashes, while pink is the classic shade for tourmaline. Either one is a correct choice for the season.
What color represents October?
Soft pink is the color most linked to October, thanks to pink tourmaline. Opal adds a second layer of color, since its pale base can flash red, blue, and green all at once. Deeper red and green tourmaline shades show up too, so October's palette runs wider than pink alone.
Can I get October's birthstone colors in cubic zirconia?
Yes. A clear cubic zirconia echoes opal's brightness, and a pink-toned cubic zirconia captures tourmaline's classic shade, both set in solid 14K gold that holds up to daily wear.
Which is better, opal or tourmaline?
Neither is objectively better; they suit different needs. Opal offers a one-of-a-kind rainbow effect and works well in pendants and earrings. Tourmaline is a harder stone with a huge color range, so it holds up better in rings worn every day.
Can you wear opal and tourmaline together?
Yes. Since both belong to the same month, pairing them isn't mismatched at all. Many people mix an opal-inspired pendant with a tourmaline-inspired ring, or pick one piece that uses both colors.
The Bottom Line
October's two birthstones give you real range: opal's soft, shifting glow or tourmaline's bold pink. Either color works beautifully in solid 14K gold with a cubic zirconia stone built for daily life. Choosing your birthstone shade really just comes down to what you'll reach for every morning. Shop our 14K Gold Rings collection to find a birthstone-inspired piece to wear all year.
Share:
18K Gold Price Per Gram: How It's Calculated
Necklace Meaning: What Every Pendant Really Symbolizes