Skip to main content
Join Mejuri+ and get 10% off your first order.Sign Up
Free Shipping On All Orders Over A$150
We've updated our web accessibility commitment.Learn more.
Mejuri logo
  • Black Onyx Square Signet Ring: A gold ring featuring a striking black onyx stone, perfect as a bold fashion accessory.
  • Close-up of a man's hand wearing the Black Onyx Square Signet Ring, highlighting its bold, square design and elegant onyx stone.
  • Black Onyx Square Signet Ring on a man's hand, highlighting the intricate design and elegance of the ring against the skin.
  • Black Onyx Square Signet Ring: A gold ring featuring a prominent black square centerpiece, offering a bold and elegant fashion statement.
  • Black Onyx Square Signet Ring featuring a black stone set in a gold band, perfect for a sophisticated and stylish look.
  • Black Onyx Square Signet Ring, featuring a polished silver band and a prominent black square stone, perfect for a bold, elegant statement.
  • Man wearing a denim jacket showcasing the Black Onyx Square Signet Ring on his finger.
  • Man wearing a white shirt showcasing the Black Onyx Square Signet Ring on his finger. Close-up highlights the ring's sleek design.
  • Black Onyx Square Signet Ring featuring a silver band with a prominent black square centerpiece, highlighting a strong and elegant onyx design.
  • Black Onyx Square Signet Ring featuring a silver band with a prominent black onyx gemstone, ideal for adding a touch of sophistication to any outfit.

Black Onyx Square Signet Ring

A$1,100
Material
14k Yellow Gold
Stone
Black Onyx

Heart

4.7

A strong touch of onyx goes a long way, especially when paired with the matching signet ring.

We believe fine jewelry should be accessible to everyone.

Our pieces are handcrafted from precious materials like solid gold, sterling silver, and diamonds—never brass or steel—so you can wear them with confidence.