A two-piece engagement ring set in black. A 5 × 7 mm pear natural Herkimer diamond sits on a black onyx pavé band, and a second band carries an open, pear-shaped halo of onyx that frames it like a hand mirror, with a single onyx marquise at the top where the handle would be. Solid 925 sterling silver with a black ruthenium finish. Every Herkimer carries its own inclusions, so no two centers look alike.
Natural Herkimer Diamond
Pear Cut, 5 × 7 mm
Black Onyx Pavé
Open Mirror Halo
Two-Piece Nesting Set
Black Ruthenium Finish
Sizes 4–11
Two Rings, One Mirror
Pear Solitaire
A four-prong 5 × 7 mm pear Herkimer, point up, on a slim band set with a line of black onyx pavé along each shoulder.
Mirror Halo Band
A matching onyx pavé band that rises into an open pear frame, topped with one onyx marquise. The frame sits over the center stone so the Herkimer appears to float inside it.
Worn together the two rings read as a single dark halo ring with a clear stone at its heart. Worn apart, the solitaire is a clean onyx pavé pear and the mirror band is an open frame ring that works over any slim stacker. The design belongs to the dark-romance lane we cover in gothic wedding rings and black rings for women; for the wider field, fairy engagement rings and non-traditional engagement rings.
The Herkimer Diamond
The center is a natural Herkimer diamond: a water-clear quartz crystal from Herkimer County, New York, named for its diamond-like brightness rather than its chemistry. This one is faceted as a 5 × 7 mm pear with the point toward the fingertip. Herkimers are prized for what is inside them, and each stone holds its own scatter of tiny inclusions, so the one you receive will share the cut and setting of the photo but not the exact pattern.
Our what is a Herkimer diamond guide covers where the crystals come from and what they are worth, are Herkimer diamond rings durable covers daily wear, and Herkimer vs salt and pepper diamond sets it against the other included stone.
Metal and Stones
Both rings are solid 925 sterling silver with a black ruthenium finish, a platinum-group metal that settles to a deep gunmetal rather than a flat black. The onyx pavé nearly disappears into it, which leaves the clear Herkimer as the one bright point in the set.
The center pear is natural Herkimer diamond quartz. Every small round stone and the marquise at the top of the frame are natural black onyx; our black onyx meaning post covers the stone's history.
Part of our Herkimer diamond engagement rings, black onyx engagement rings, halo engagement rings and pear shaped engagement rings collections, alongside the rest of our black ruthenium jewelry and gothic engagement rings.
Specifications
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Set includes: Pear solitaire and open halo mirror band — two rings
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Center stone: Natural Herkimer diamond (quartz), pear cut, 5 × 7 mm
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Accent stones: Natural black onyx rounds, pavé-set on both rings; one black onyx marquise at the top of the frame
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Metal: Solid 925 sterling silver, black ruthenium finish
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Setting: Four-prong pear center; raised open halo band
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Hardness: Quartz 7, onyx 6.5 to 7 on the Mohs scale
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Sizes: 4 to 11, including half sizes
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Engraving: Available, up to 16 characters
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Presentation: Free luxury velvet jewelry box
Care
Quartz is 7 and onyx 6.5 to 7 on the Mohs scale, both suited to regular wear. Clean with warm water, mild soap and a soft brush, working the brush along the pavé where lotion collects, then dry before storing. Onyx is slightly porous, so keep the set away from bleach and solvents. No silver polishing cloths or abrasive compounds, which thin the black ruthenium finish; avoid ultrasonic cleaners and household chemicals for the same reason. Take the set off for the gym, gardening and heavy cleaning. Our engagement ring care guide and how to clean jewelry at home cover the rest.
Frequently Asked Questions
Is the Herkimer diamond a real diamond?
No. A Herkimer diamond is a naturally double-terminated quartz crystal from Herkimer County, New York, named for its diamond-like clarity and shape. It is natural quartz, not diamond. The black stones on both rings are natural black onyx.
Will mine look exactly like the photo?
No, and we would rather say so plainly. Every Herkimer carries its own inclusions, so the pear you receive will share the size, cut and setting but not the exact pattern inside the stone.
How many rings come in the set?
Two. The pear solitaire and an open halo band shaped like a hand mirror that frames it. Both ship together in one box.
How big is the center stone?
5 × 7 mm, pear cut, held in four prongs with the point toward the fingertip.
Is Herkimer quartz hard enough for everyday wear?
Yes, with ordinary care. Quartz is 7 on the Mohs scale and onyx is 6.5 to 7, both fine for daily wear. The black ruthenium finish, not the stones, is the part to protect.
How dark is the black ruthenium finish?
Ruthenium settles to a deep gunmetal rather than a flat jet black. Against it the onyx pavé reads almost seamless and the clear Herkimer reads brighter.
What are the rings made of?
Solid 925 sterling silver with a black ruthenium finish. No brass or base metal.
Can I wear the rings separately?
Yes. The pear solitaire stands on its own as an onyx pavé ring, and the mirror band wears alone as an open halo ring with nothing inside it.
Do the two rings sit flush?
Yes. The halo band is raised so its frame sits over the center stone, and the two pavé shanks stack together without a gap.
What sizes are available?
Sizes 4 through 11, including every half size. Both rings are made to the same size.
Can I have them engraved?
Yes. Engraving is available on the inner band, up to 16 characters, and can be added as an option at checkout.
Are the stones ethically sourced?
Yes. All Aquamarise stones are conflict-free and responsibly sourced, and every order arrives in a free luxury velvet jewelry box.
