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Onyx Pentagon RingMATEO Jewelry New York

Onyx Pentagon Ring

$500

A striking statement piece with architectural presence. This pentagon black onyx ring channels understated power the kind of bold geometry that commands attention without shouting. Hand-crafted in New York from 925 sterling silver with white rhodium plating, it's built to become a signature piece. The custom-cut gemstone and made-to-order approach ensure each ring carries the precision of fine jewelry. Perfect for those who favor form and substance in equal measure.

  • 925 Sterling Silver
  • 5.10gm Silver
  • 15 x 14.7mm Black Onyx 
  • White Rhodium plating
  • Made to order in New York
  • 2-3 week delivery


Shipping calculated at checkout.
Onyx Pentagon RingMATEO Jewelry New York
Onyx Pentagon RingMATEO Jewelry New York
Onyx Pentagon RingMATEO Jewelry New York
Onyx Pentagon RingMATEO Jewelry New York

Every MATEO piece is guaranteed under a lifetime warranty.

Your item will arrive in the famous MATEO black box, ready to gift or receive.

Complimentary FEDEX priority overnight shipping on all US orders.

Order before 4pm for same day despatch. 

Every piece comes with a 30-day return window, so you can buy with confidence.

Our payment provider Shop Pay will allow you to make any purchase with instalments, take the item to the checkout now to purchase with finance.

That little black box.

The one you've been waiting for.

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Testimonials

Simone Cahill
“

I recently bought from the Baroque Pearl collection and my goodness, they are beautiful!

”
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I’ve returned to Mateo for years. Each piece feels considered, and every occasion feels that little bit more special.

”
Lily Harrington
“

The details are what stayed with me. Nothing feels accidental.

”
Suazanne Ward
“

I wore the baroque pearl necklace to a special occasion and was overwhelmed by the response. It drew attention in the most effortless way.

”
Isabella Clarke
“

It’s rare to find something so refined yet so simple. Mateo understands restraint in the best possible way.

”
Amelia Grant
“

From the moment it arrived, everything felt considered. The packaging alone is enough.

”
Julie Andrews
“

I bought the Baroque Pearl earrings last year and haven't taken them off since!

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Caroline Dawson
“

My order arrived beautifully and without delay. The piece itself exceeded expectations, I’m already considering what to choose next.

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