Black Diamond Signet Ring

The Black Diamond Signet Ring is set with 1/10 ctw of natural round black diamonds, their opaque jet-black colour reading crisp and graphic against bright metal. Designed as a brushed signet face flanked by black-diamond shoulders, with stones measuring about 1.5mm each, it is a confident, modern piece that wears well on any hand.

The stones are genuine natural diamond - mined diamond material, never glass, cubic zirconia or a simulant. As is standard for commercial black diamonds, the uniform black colour is commonly achieved through treatment such as irradiation and/or heat (HPHT). We do not represent these stones as untreated, and we do not hold an individual treatment report for each diamond. The colour is permanent and needs no special upkeep.

Every piece is solid gold or platinum - never plated. Diamond is the hardest gem (Mohs 10), so these rings are built for everyday wear; clean with warm water, mild soap and a soft brush, and store separately to protect the setting.

A bold, versatile gift. Black diamonds bring an understated, unisex edge that suits men and women alike - a strong choice for a birthday, an anniversary, a graduation, or simply someone who prefers dark, modern jewellery over the expected.

Every order ships via complimentary insured UPS Express, signature required on delivery. Ready-to-ship pieces leave us in 2–3 business days; made-to-order pieces in 5–10. Returns accepted within 30 days, and every piece carries our free lifetime warranty.