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Isaac Westman
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Mens Black Onyx & Diamond Signet Ring

$1,650

The signet, in onyx and diamond. A ten-by-fourteen-millimeter polished black onyx at the face, selected for an even matte field with no banding.

Stone
black onyx
Metal
14kt gold
Metal14K White Gold
Ring size

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See this piece first

Photos and a short video of the piece you’d receive, within one business day.

Pieces in keeping

Details

Color, worked with the character of the stone.

Description

The signet, in onyx and diamond.

A ten-by-fourteen-millimeter polished black onyx at the face, selected for an even matte field with no banding. Point-zero-seven carats of round-brilliant diamond accent the shoulder in fourteen-karat white or yellow gold.

Unmistakably Isaac Westman.

Specifications
Style
black onyx ring
Metal
14kt gold
Stone
black onyx
Hallmark
14K
Materials & provenance
Black onyx is selected for an even, deep matte finish — the surface absorbs light cleanly without flaws or banding. Where present, accent diamonds come through our cutters in the major diamond centers and are matched for color and clarity. Every piece is made to our specification, then inspected and approved in New York before it carries our name.
Care
Black onyx is hardier than most coloured stones but still benefits from gentle care. Wipe with a soft, dry cloth after wear. Avoid harsh chemicals and prolonged water contact. Send the piece in for its complimentary annual inspection — we check the setting and re-polish the onyx as needed.
Authenticity

Materials are as stated in the specifications. See Authenticity for how we stand behind each piece.

Unmistakably Isaac Westman.

The Isaac Westman Standard

Every ISAAC WESTMAN piece is inspected and approved in New York before it carries our name.

From the house

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Pave Diamond Ring

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Black Onyx and diamond halo earrings by ISAAC WESTMAN featuring elegant black stones and sparkling diamond accents.

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Luminance 18K white gold diamond ring with sparkling 0.83 carat diamonds, crafted by ISAAC WESTMAN®.

Luminance 18K White Gold Diamond Ring

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Concierge

Any questions? Speak with us.

sales@isaacwestman.com
+1 (347) 389-0766

Mon – Fri, 10 a.m. –⁠ 6 p.m. ET · New York, NY