Cosmic Egg Jet Black Signet Ring onyx A singular round pink sapphire

A singular round pink sapphire set in a four-pronged star setting sits proudly at its centre

Our take on the mariner chain is ready for almost anything

Jet Black Enamel

The faceted structure offers a dynamic interplay of light

Perfect for when you want to amp it up just a little

Cosmic Egg Jet Black Signet Ring onyx A singular round pink sapphireThe Cosmic Egg Jet Black Signet Ring reimagines the Cosmic Egg story in a familiar State Property silhouette. The design turns the egg on its side, creating an asymmetry that feels organic, effortless, yet quietly unexpected. At its crown, an emerald cut diamond rests against the Jet Black enamel face, framed by halos of pav stones that lend a soft, celestial shimmer. The result is a silhouette that feels both novel and known a new chapter written in