Size Guide
Between sizes? Size up.
Match the inner diameter of a ring you already wear. Between sizes, size up.
Cuffs are one size and gently adjust.
Best for pendants: 50 cm.
- Water & Sweat-Proof
- Hypoallergenic
- 30 Day Guarantee
Description
Description
A men's signet ring with a rectangular black onyx face set in polished steel — clean contrast, everyday weight.
- Polished stainless steel with a black onyx stone
- Rectangular flat-top face
- Tarnish- and water-resistant
Composition & Care
Composition & Care
Material: 316L stainless steel
Finish: Polished 316L stainless steel
Properties: Tarnish-resistant · water-safe · hypoallergenic
Wipe with a soft, dry cloth. Safe to wear in water — rinse and dry occasionally. Avoid perfumes, lotions, and abrasive cleaners. Store flat, away from other pieces.
Shipping & return
Shipping & return
Free worldwide shipping on orders over $80, fully tracked.
Easy 30-day returns, unworn and in original packaging.
Size & Fit
Size & Fit
A solid 316L steel signet with a crisp rectangular onyx-black face — a little more presence across the knuckle. Heavy in the hand, smooth on the finger. Match your size on the chart below and wear it daily; shower, gym and ocean safe, and it never fades.

Not sure of your size? Measure the inside diameter of a ring you already wear and match it to the chart.

MODERN ESSENTIAL
About This Piece
A men's signet built for everyday wear, solid weight, clean contrast, balanced on the hand. Wears solo or stacked, and earns its place without shouting.
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Free Worldwide Shipping
Free on orders over $80, fully tracked.
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Easy 30-Day Returns
Hassle-free returns within 30 days, unworn and in original packaging.
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Trusted by Modern Men
10K+ Happy Customers
Pieces Chosen by Modern Men.
Consistency You Can Feel
We focus on long-term wear, everyday comfort, and pieces that become part of your daily routine.
100%
Designed for everyday confidence and real-life wear.
76%
Customers feel more confident wearing 887Seven.
72%
Return customers who come back for more.