Two stones, leaning toward each other like a pair of hands. This toi et moi engagement ring pairs a hexagon-cut natural Herkimer diamond — a clear quartz crystal flecked with smoky, galaxy-like inclusions — with a pear of deep, glossy jet-black natural black onyx. Each stone rests in its own four-prong basket on a slender band of solid 925 sterling silver with a rhodium finish. Light and shadow, sparkle and shadow-black: one honest, gothic little piece of the natural world.
Hexagon Herkimer diamond
Natural black onyx pear
Toi et moi two-stone
Solid 925 sterling silver
Rhodium finish
Free velvet gift box
Two stones, one meaning
Toi et moi — French for “you and me” — is a centuries-old design in which two stones sit side by side, each distinct, together making a whole. Here the contrast is the whole point: the salt-and-pepper flicker of the Herkimer against the absolute jet-black of the onyx, transparency beside opacity, light beside shadow. It is a two-stone story about two people who don’t match and don’t need to. If that dark-romantic mood is yours, you will feel at home in our gothic engagement rings collection.
The Herkimer diamond
The hexagon center is a natural Herkimer diamond — not a diamond at all, but a doubly-terminated quartz crystal mined from Herkimer County, New York since the 1800s. Its glassy clarity is interrupted by dark carbon and anthraxolite inclusions that create the coveted salt-and-pepper look, the smoky, galaxy-flecked aesthetic of the most sought-after alt-bridal stones — at a natural quartz price. No two Herkimers are alike; every inclusion pattern is geologically one of one, so your ring is genuinely unrepeatable. At Mohs 7.5, it stands up well to daily wear.
The natural black onyx
Beside it sits a pear of natural black onyx, a chalcedony treasured since antiquity for its deep, velvet-smooth, opaque black. The teardrop shape softens the architectural angles of the hexagon and grounds the pairing with pure, saturated color. Black onyx sits around 6.5–7 on the Mohs scale and holds a beautiful mirror polish. To explore its long history and meaning, see our guide to black onyx meaning and our wider guide to black gemstones.
Solid sterling silver with a rhodium finish
The band is solid 925 sterling silver — hallmarked, nickel-safe, never plated base metal — at a delicate 1.7mm so the focus stays on the stones. It is finished with rhodium, the same precious metal used on fine white gold, which gives the silver a bright, mirror-white luster and adds a protective layer against everyday tarnish and scratches. Clean, minimal metalwork frames both stones in cool bright silver without competing for attention.
Who it is for
This ring is for brides drawn to salt-and-pepper, inclusion-heavy, galaxy-patterned stones; for crystal lovers who value the Herkimer’s geology and double termination; and for anyone whose aesthetic runs gothic, witchy or dark-romantic. It makes an unforgettable engagement ring, a meaningful anniversary or Valentine’s gift, or a statement piece for someone who lives in silver and black. Shopping for two? Explore matching black onyx couples rings.
Specifications
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Setting style Toi et moi (two-stone), four-prong baskets
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Stone 1 Natural Herkimer diamond (quartz), hexagon cut, salt-and-pepper inclusions
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Stone 2 Natural black onyx, pear cut, polished chalcedony
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Herkimer hardness 7.5 on the Mohs scale
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Onyx hardness 6.5–7 on the Mohs scale
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Metal Solid 925 sterling silver with rhodium finish (hallmarked, nickel-safe)
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Band width Approx. 1.7mm, polished high-shine
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Sourcing Ethically sourced, conflict-free stones
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Included Free luxury velvet gift box & lifetime warranty
Sizing & care
Choose your size at checkout. If you are between sizes or unsure, message us before ordering and we are glad to help — and if the fit isn’t quite right, resizing is available and starts from a modest fee. To keep both stones and the rhodium finish bright, remove the ring before showering, swimming, cleaning or applying lotions, avoid harsh chemicals and ultrasonic cleaners, and store it in the velvet box. A soft, dry cloth restores the shine. With gentle care, this is a ring made to be worn and loved for years.
Frequently asked questions
Is the black onyx natural?
Yes. The pear-cut stone is natural black onyx, a genuine chalcedony prized for its deep, glossy jet-black color and velvet-smooth polish. Its opacity is the perfect counterpoint to the clear Herkimer beside it.
Is the Herkimer diamond a real diamond?
No, and that is part of its charm. A Herkimer diamond is a natural, doubly-terminated quartz crystal from upstate New York. Its dark carbon inclusions give the coveted salt-and-pepper look of alt-bridal diamonds at a natural quartz price — a genuine gemstone with real geological history.
What is a toi et moi ring?
Toi et moi is French for “you and me.” It is a two-stone design in which two distinct stones sit side by side, symbolizing two people joined as one. Here the pairing contrasts a clear, flecked Herkimer with a deep black onyx.
Will my ring look exactly like the photos?
It will share the same character, but each Herkimer diamond’s inclusion pattern is geologically unique — no two are identical. That one-of-a-kind smoky flicker is the hallmark of a natural Herkimer, so yours is truly its own.
What metal is it made from?
Solid 925 sterling silver, hallmarked and nickel-safe, never plated base metal, finished with rhodium for a bright white luster and extra protection against tarnish and scratches.
What does the rhodium finish do?
Rhodium is the same precious metal used to finish fine white gold. It gives the silver a mirror-bright, white-gold-like shine and adds a protective layer that helps the ring stay looking freshly polished.
How durable is it for daily wear?
Very wearable. The Herkimer quartz sits at Mohs 7.5 and the black onyx around 6.5 to 7, both well suited to everyday wear with normal care. Avoid hard knocks and remove the ring for rough activities to keep both stones pristine.
What do the stones symbolize?
Herkimer diamond is linked in crystal lore to clarity and light, while black onyx traditionally signifies strength, protection and emotional steadiness. Together they speak to the duality of a real partnership: two distinct people, one shared life.
Will sterling silver turn my finger green?
No. Genuine 925 sterling silver does not turn skin green; that reaction comes from low-quality base metals. This ring is solid sterling silver finished with rhodium, hallmarked and nickel-safe.
What size should I order?
Select your ring size at checkout. If you are unsure or between sizes, contact us for guidance before ordering. Resizing is available and starts from a modest fee.
How do I care for it?
Remove the ring before showering, swimming, cleaning or applying lotions, avoid harsh chemicals and ultrasonic cleaners, store it in the velvet box, and buff with a soft dry cloth. Gentle care keeps both stones and the rhodium finish bright.
Are the stones ethically sourced?
Yes. Both stones are ethically sourced and conflict-free, so you can wear the ring with complete peace of mind.
Does it arrive gift-ready?
Every order ships in a free luxury velvet gift box and is backed by our lifetime warranty — ready for a proposal or to give as a keepsake.
Can I see more gothic and onyx designs?
Of course. Explore our black onyx engagement rings and read our guide to Victorian gothic engagement rings for more dark-romance inspiration.
