Blue Sapphire, Black Onyx & Fire Opal Couples Ring Set

Q: Is this sold as a matching set?

Yes, it is a two-piece his and hers couples set, and each ring can also be purchased separately.

Q: Is the sapphire real?

Yes, her center is a lab-grown blue sapphire, real sapphire grown in a lab and chemically identical to a mined stone. The accents are black onyx and simulated diamonds (cubic zirconia).

Q: Is sapphire a birthstone?

Yes, sapphire is the September birthstone, which makes this set a meaningful September birthday, engagement, or anniversary gift.

Q: Is this good for an art-deco or gothic wedding?

Yes, the emerald cut and black onyx make it a favorite for art-deco, gothic, and alternative weddings, engagements, and promise rings.

~~$275.00~~ $233.95 15% off

Unit price: per

Ready to ship — FREE delivery Mon, Sep 21 – Sat, Sep 26

Need it faster? 2-day & overnight at checkout.

Shipping calculated at checkout.

Size Chart

Find your ring size

Print at 100% / Actual Size — turn off "fit to page" or scaling.
Check the printed ruler measures exactly 80 mm.

Method A — Measure a ring

Lay a ring you own over the circles. The matching circle is your size.

Method B — Finger strip

Cut out the strip, wrap it around your finger, thread the end through the slit, and read your size.

Open the printable sizer (PDF)

1. Calibrate your screen — pick a reference object, hold it against the outline, and drag until the widths match exactly. On a phone, a coin is easiest — a card is often wider than the screen.

Bank card — hold vertically

2. Match a ring you own — drag until the circle fits just inside one of your rings.

US 6 · 16.5 mm · UK L½ · EU 52

This on-screen tool is a close guide, not a guaranteed exact fit. For certainty, order a ring sizer.

US	Diameter	Circumf.	UK/AU/IE	EU

UK, Australia & Ireland share the letter system. European sizes are approximate conversions.

In Stock Free Delivery Est. Sep 26

Product Description

Deep blue meets midnight black. This blue sapphire, black onyx & fire opal couples ring set pairs an emerald-cut sapphire framed in onyx for her with a tungsten band flecked in blue fire opal and onyx for him — a bold, low-key gothic his-and-hers pairing for couples who want their rings to feel like a statement, not a default.

Emerald-cut lab blue sapphire Black onyx & blue fire opal September birthstone Sterling silver + tungsten His & hers

Two rings, one love story

Some couples reach for softness; others are drawn to contrast and drama. This set is for the second kind. Her onyx-framed sapphire and his opal-and-onyx band are designed to be worn together — one of the moodiest, most striking pairings in our dark romance couple rings — yet each stands beautifully on its own as an engagement ring, a wedding band, or a promise ring. If you are still comparing styles, our guide to the best matching rings for couples in 2026 is a lovely place to start.

Her Ring

Solid 925 sterling silver in a bright rhodium finish, centered on an emerald-cut lab-grown blue sapphire (approx. 8 x 6 mm, 1.4 ct) flanked by black onyx and brilliant simulated-diamond accents. Slim 1.7 mm band.

His Ring

An 8 mm comfort-fit tungsten carbide band inlaid with crushed blue fire opal and black onyx — deep, glowing, and quietly bold.

The emerald-cut blue sapphire

Her center is a lab-grown blue sapphire — real sapphire, grown in a lab and identical to a mined stone, cut in an elegant, art-deco emerald shape. As the September birthstone and a centuries-old emblem of loyalty and enduring love, sapphire has a story worth knowing; you can read it in our sapphire meaning guide. Framing it, black onyx forms deep as far back as volcanic rock, prized for its steadying, grounding presence — more on that in our black onyx meaning guide.

The blue fire opal men's band

His 8 mm tungsten band carries a channel of crushed blue fire opal streaked with black onyx, so the surface catches light with a soft inner glow. Set into scratch-resistant tungsten carbide, it is built for a lifetime of everyday wear. Opal lovers can explore more glowing options in our fire opal ring guide or across our opal couples rings.

Metals & everyday wear

Her ring is solid 925 sterling silver finished in rhodium for a crisp, white-gold look; his is tungsten carbide, one of the hardest, most scratch-resistant metals in fine jewelry, with a comfort-fit interior. Both are hypoallergenic and nickel-free, and her ring can be upgraded to solid gold on request.

Specifications

Set Two-piece his & hers couples ring set
Her metal Solid 925 sterling silver, rhodium finish
Center stone Lab-grown blue sapphire, emerald cut, approx. 8 x 6 mm (1.4 ct)
Accents Black onyx & simulated diamond (cubic zirconia)
His metal Tungsten carbide, comfort fit
His inlay Crushed blue fire opal & black onyx
Band widths 8 mm (his) · 1.7 mm (hers)
Birthstone September (sapphire)

Sizing & care

Each ring is made to order in your exact sizes, so the pair arrives fitted to the two of you. Wipe clean with a soft cloth and store dry. Every order arrives in a free luxury velvet ring box with free U.S. shipping, conflict-free stones, and a lifetime warranty — ready to gift or propose with the moment it lands. Prefer a matching set? Each ring is also available separately.

Frequently asked questions

Is this sold as a matching set?

Yes — it is a two-piece his & hers couples set, and each ring can also be purchased separately.

Is the sapphire real?

Yes — her center is a lab-grown blue sapphire, real sapphire grown in a lab and chemically identical to a mined stone. The accents are black onyx and simulated diamonds (cubic zirconia).

What is an emerald cut?

A rectangular step-cut with clipped corners and long, clean facets — an elegant, art-deco-friendly shape.

Is sapphire a birthstone?

Yes — sapphire is the September birthstone, which makes this set a meaningful September birthday, engagement, or anniversary gift.

What is on the men's band?

His 8 mm tungsten band carries crushed blue fire opal and black onyx, for a deep, glowing effect.

What are the accent stones?

Black onyx framing the center, with sparkling simulated diamonds (cubic zirconia).

What metals are used?

Her ring is solid 925 sterling silver with a rhodium finish; his is tungsten carbide. Both are hypoallergenic and nickel-free, and her ring can be made in solid gold on request.

Is this good for an art-deco or gothic wedding?

Yes — the emerald cut and black onyx make it a favorite for art-deco, gothic, and alternative weddings, engagements, and promise rings.

What are the band widths?

Her band is 1.7 mm and his band is 8 mm.

What comes with my order?

A free luxury velvet ring box, free U.S. shipping, conflict-free stones, and a lifetime warranty.

Properties of Opal

Properties of Sapphire

Shipping & Delivery

Engraving

Prefer just one? The rings, sold individually

Blue Fire Opal & Black Onyx Wedding Band- 8MM Tungsten featuring vibrant blue opal inlays and a sleek black onyx stripe in a polished tungsten setting by Aquamarise.

HIS RING $189.00 ~~$219.00~~

Blue Sapphire & Black Onyx Leaf Engagement Ring- 14K White Gold by Aquamarise Gold, featuring an emerald-cut blue sapphire center with black onyx accents in a nature-inspired leaf design.

HER RING $135.00 ~~$160.00~~

QUICK ADD ON:

Night Court Handmade Leather Book Ring Box (Small)

$79.99

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Shop the Look

Fantasy Shield Cut Sapphire Leaf Engagement Ring Set

Free US shipping

Free ring box

Free size exchanges

Ethically sourced

Free U.S. Shipping + Worldwide Delivery

Ethically Sourced Gemstones

Handcrafted by Aquamarise®

Complimentary Engraving on Every Order

Free U.S. Shipping + Worldwide Delivery

Ethically Sourced Gemstones

Handcrafted by Aquamarise®

Complimentary Engraving on Every Order

What Makes Aquamarise® Different

Two rings with blue stones on a gray stone surface

Ethically Sourced, Always

Each gemstone is meticulously hand-selected for its brilliance and clarity, responsibly sourced from trusted partners around the world.

Built to Be Worn, Not Just Admired

Every piece is expertly crafted and finished to endure daily wear, combining lasting strength with enduring beauty beyond the display case.

Specifically Designed for You

Every Aquamarise® creation is thoughtfully designed for those who view jewelry as a personal expression. Never mass-produced, each piece carries a sense of meaning and individuality.

Crafted to Last. Not Just Sparkle.

While most jewellers focus on appearance, Aquamarise® focuses on craftsmanship, durability, and pieces you will treasure forever.

		Others
Premium Materials
Personalized Engraving
Craftsmanship Guarantee
Ethically Sourced Gemstones
Luxury Gift Packaging

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5 stars: 4 (80%)
4 stars: 1 (20%)
3 stars: 0 (0%)
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1 star: 0 (0%)

Absolutely stunning! They fit perfectly. The seller is extremely helpful. Will definitely recommend to anyone who is looking for beautiful jewelry with amazing quality.

More stunning in person than any photo can do justice to

More stunning in person than any photo can do justice to..

Absolutely beautiful. Worth every penny spent. Will be buying from this seller again

We’re delighted to know that you find the ring absolutely beautiful and worth every penny! Thank you for your support, and we look forward to serving you again! 🔥

My wife thought it was beautiful.

She ended up loving the gift

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