- by MollyJewelryUS
- September 28, 2026
- Buying Guides
October is one of the few months with two recognized birthstones, with precious opal standing out for its mesmerizing play-of-color. Its distinctive appearance has made it an enduring favorite in fine jewelry.
If you’re looking for a more personal take on an October birthstone necklace, opal pendants are well worth considering. Below, we’ll walk through 7 different styles and share practical tips for choosing and wearing one that fits your look.
Table of Contents
Quick Comparison of Opal October Birthstone Necklace Styles
Quick Comparison of Opal October Birthstone Necklace Styles
The table below highlights the best opal birthstone necklaces by silhouette, style, and ideal wearer, giving you a quick overview of each design.
| Style Name | Key Design Feature | Ideal For |
|---|---|---|
| Round Natural Opal Infinity Pendant | Oval opal encircled by a sleek unique pattern | Daily wear, meaningful birthday gift |
| Pear Natural Opal Three Stone Necklace | Elongated pear-shaped opal with dual accent stones | Timeless jewelry lovers, formal & casual wear |
| Bezel Set Oval Opal Cross Necklace | Protective bezel border around a classic cross shape | Personal faith token, daily wardrobe staple |
| Pink Opal & Moonstone Halo Pendant | Soft pink opal paired with luminous moonstone accents | Pastel aesthetic lovers, october birthstone necklace for girl |
| Garden-Themed Pear Natural Opal Leaf Necklace | Botanical leaf details embellishing a pear-shaped opal | Floral jewelry lovers, October birthstone gift |
| Oval Natural Opal Halo Necklace | Bold halo setting with criss-cross side accents | Special occasions, focal neckwear pieces |
| Heart Cut Opal Pendant | Classic heart silhouette with shimmering diamond accents | Anniversaries, milestone birthdays, romantic gifts |
Best Opal Birthstone Necklaces for Casual Elegance
Best Opal Birthstone Necklaces for Casual Elegance
Delicate yet understated, these four October birthstone pendants are suited to daily wear and make thoughtful gemstone necklace gifts.
1. Oval Cut Natural Opal Infinity Pendant
1. Oval Cut Natural Opal Infinity Pendant
- Style Profile: Everyday Elegance • Fluid Symbolism • Office-to-Evening Versatility
An infinity motif gives the October birthstone necklace an extra layer of symbolism while keeping the overall design clean. The round opal remains the focal point, while the surrounding metal frame adds subtle leaf detail.
This style works well for someone who likes symbolic jewelry but prefers a design that can transition easily between everyday outfits and more polished occasions.
2. Pear-Shaped Opal Three Stone Necklace
2. Pear-Shaped Opal Three Stone Necklace
- Style Profile: Timeless Grace • Elongating Silhouette • Refined Sophistication
A teardrop opal birthstone pendant naturally elongates the neckline, anchored by two shimmering accent stones that add balanced brilliance.
This vertical three-stone architecture offers a sophisticated alternative to a traditional everyday necklace, catching light from every angle. It creates a graceful profile that subtly elevates tailored blouses, V-neck tops, or formal dresses.
3. Bezel Set Oval Opal Necklace with Cross Design
3. Bezel Set Oval Opal Necklace with Cross Design
- Style Profile: Understated Devotion • Clean Geometric Edge • Low-Maintenance
This necklace puts a modern spin on the classic cross with a clean, minimalist design. Its central opal is enclosed in a smooth bezel that helps protect the stone from everyday snags while giving it a crisp geometric outline. Easy to style and comfortable for daily wear, it strikes a balance between October birthstone meaning and simplicity.
4. Lab Pink Opal Halo Necklace with Moonstone Accents
4. Lab Pink Opal Halo Necklace with Moonstone Accents
- Style Profile: Dreamy Pastel Aesthetic • Ethereal Softness • Youthful Milestone Charm
A soft pink opal takes center stage, complemented by the subtle iridescence of moonstone for an almost cloudlike glow. The pastel hues deliver a romantic, youthful mood, while the delicate silhouette gives the piece an effortless elegance.
With its bright and lively character, this October birthstone necklace for girl brings out a sweet way to celebrate a birthday or commemorate a milestone worth remembering.
Necklaces with October Opal Birthstones for a Bold Presence
Necklaces with October Opal Birthstones for a Bold Presence
Prefer something more decorative? These birthstone opal necklaces feature unique shapes and details that draw more attention to the gemstone.
1. Garden-Themed Pear Opal Pendant with Leaf Patten
1. Garden-Themed Pear Opal Pendant with Leaf Patten
- Style Profile: Botanical Artistry • Organic Vintage Charm • Heirloom-Quality Sentiment
Surrounded by sculpted leaves, the pear-shaped opal brings a soft focal point to this nature-inspired design. Flowing curves and finely worked foliage create a sense of movement, turning the pendant into a wearable botanical artwork with a distinctly vintage feel.
Rich in handcrafted detail, this piece serves as a deeply personal and memorable opal birthstone necklace gift for mom.
2. Oval Opal Halo Pendant with Criss Cross Accents
2. Oval Opal Halo Pendant with Criss Cross Accents
- Style Profile: High-Impact Glamour • Architectural Depth • Evening Focal Piece
The halo frame and criss-cross accents create a dimensional setting that gives this October birthstone necklace a more dramatic presence. Layered metalwork adds sculptural, architectural elements without taking attention away from the opal at its center.
Designed to stand out, this necklace shines brightest as a standout focal piece paired with simple necklines or evening attire.
3. Heart-Shaped Romantic Natural Opal Necklace
3. Heart-Shaped Romantic Natural Opal Necklace
- Style Profile: Unapologetic Romance • Shimmering Contrast • Anniversary Gift
A signature heart-shaped silhouette gives this opal birthstone pendant an unmistakably romantic character. Interwoven accent stones add extra sparkle, creating flashes of light that move beautifully with the wearer.
The bright accents also play against the opal’s shifting colors, bringing out a rich contrast that feels both glamorous and sentimental. It’s a perfect gift for an anniversary or another occasion worth commemorating.
Opal or Tourmaline, Which is Better for an Birthstone Necklace?
Opal or Tourmaline, Which is Better for an Birthstone Necklace?
As noted at the beginning, opal and tourmaline are both October birthstones, yet each brings a different aesthetic to jewelry.
Instead of asking which gemstone for necklace is better, think about the colors you’re drawn to, the level of durability you need, and how you like to style your jewelry.
| Feature | Opal Birthstone Necklace | Tourmaline Birthstone Pendant |
|---|---|---|
| Optical Effect | Dynamic “Play-of-Color” rainbow flashes | Deep, saturated monochrome brilliance |
| Color Spectrum | Milky white, pink, or dark bases with iridescent specks | Wide range of solid colors (vibrant pinks, deep greens, bi-color) |
| Durability (Mohs) | 5.5 – 6.5 (Requires delicate care) |
7 – 7.5 (Suitable for active daily wear) |
| Aesthetic Vibe | Ethereal, romantic, vintage, and dreamlike | Modern, crisp, bold, and gemstone-focused |
In short, an opal necklace may appeal to those drawn to shifting iridescence, romantic charm, and the timeless vintage character often associated with October birthstones.
A tourmaline pendant, meanwhile, suits those who prefer vivid, consistent color, stronger scratch resistance, and simpler everyday care.
October Birthstone Pendant Metals: Gold, Platinum or Silver?
October Birthstone Pendant Metals: Gold, Platinum or Silver?
The metal you choose matters just as much as the pendant design and birthstone. It affects three practical areas: appearance, price, and wearability. To find the right match, consider what the wearer usually wears and how often they plan to wear the necklace:
🌟 Gold (Yellow Gold or Rose Gold):
Yellow gold enhances the warm side of opal’s shifting colors and brings a classic, timeless quality to the design. Rose gold works especially well with pink opal and other soft hues, creating a romantic finish.
🌟 Platinum or White Gold:
These cool-toned metals give an October birthstone necklace a crisp, contemporary look and allow the opal to remain the visual focal point. Platinum is particularly durable and may be a suitable choice for those with certain metal sensitivities, depending on its composition.
🌟 Silver:
It offers a more affordable option while providing a lightweight feel and bright, cool-toned finish. It may require occasional polishing to maintain its shine.
How to Choose the Right Opal Birthstone Necklace
How to Choose the Right Opal Birthstone Necklace
If you’ve decided on opal as your October birthstone necklace, think beyond the gem itself. The right piece should complement the wearer’s lifestyle, wardrobe, and personal preference:
- Everyday vs. Statement: Choose simple designs such as infinity or bezel-set pendants for everyday wear. For a more eye-catching look, halo and leaf-inspired settings offer extra detail around the opal.
- Pendant Silhouette: Elongated cuts (oval and pear) lengthen the look of the neck, while round and heart shapes offer a softer, compact visual balance.
- Necklace Length: When shopping online, check photos from multiple angles and use a real-life size reference whenever possible to avoid surprises about scale.
- Budget & Value: Understanding factors behind opal pendant prices—such as natural vs. lab-grown origins and metal selection—helps you find the best value for your budget.
👉🏻 For more ideas on pairing birthstones with different necklace styles, see our gemstone necklace choosing guide.
Frequently Asked Questions
Frequently Asked Questions
Must an October birthstone necklace contain both stones?
No, either opal or tourmaline can provide the October association. You should select the stone the wearer likes rather than treating a two-stone combination as mandatory.
Can I choose tourmaline if I do not want an opal necklace?
Yes, tourmaline is also an October birthstone. Confirm the actual stone and available design rather than assuming a pictured opal necklace can be made with tourmaline.
Is an Opal Birthstone Necklace Suitable for Everyday Wear?
Yes, provided it is cared for gently. Because opal is softer than diamonds or sapphires (5.5–6.5 Mohs), avoid harsh chemicals, intense heat, and high-impact activities while wearing it.
What is the best October birthstone necklace style for mom?
Can an October birthstone pendant be worn on my own chain?
It depends on the pendant bail size. Always verify that your chain’s clasp and end fitting can pass smoothly through the pendant’s bail opening before buying them separately.
Get Your Favourite October Birthstone Necklace at MollyJewelryUS
Get Your Favourite October Birthstone Necklace at MollyJewelryUS
For those who value both emotion and meaning, an October birthstone opal necklace offers a thoughtful blend of personal sentiment and versatile elegance.
At MollyJewelryUS, you’ll find everything from understated infinity symbol pendants to botanical halo designs and romantic heart-shaped styles. With carefully selected opals and distinctive details, these pieces work beautifully whether you’re giving one to someone special or choosing one for yourself.
📖 Sources:
- GIA October Birthstones, Opal Description identifies October’s two stones.
- Styling checks are editorial suggestions, not product test results.