Onyx Signet Ring

A square black onyx face sits flush inside a brushed stainless steel setting, built on a solid signet band. The flat stone panel gives this ring a squared, blocked-off look rather than a raised gemstone, keeping the profile low and wearable under a cuff. It's cut for men who want a signet without the crest, just clean geometry and contrast.

• Square black onyx panel set flush into a brushed steel face for a flat, matte finish
• Solid stainless steel construction resists tarnish, rust and everyday wear
• Brushed shank contrasts with the smooth onyx top for a two-texture look
• Wide, straight-sided band gives the ring weight without feeling bulky
• Hypoallergenic build holds up to daily wear, water and knocks

10% of every Crown purchase is dedicated to ocean conservation efforts — helping remove pollution from our waters and protect marine ecosystems, so your jewelry makes a real difference.

The flat onyx face reads more architectural than decorative, built for a hand that doesn't want to fuss with it.