Custom Black Onyx Dice
Smooth, solid-black dice for the shadows
Black onyx is a smooth, solid-black chalcedony long associated with protection and secrecy. Unlike glassy obsidian, onyx is an opaque banded stone, giving it an even, understated finish.
Appearance
A deep, uniform matte-to-glossy black with no translucency. Gold or silver engraving stands out crisply, making it a favourite for logo and symbol work.
Durability & care
Onyx is a chalcedony (about 7 on the Mohs scale) and, without the brittleness of natural glass, it is one of the more forgiving dark stones for everyday play. A soft tray is still recommended.
Best for
The obvious match for a Rogue working in the dark, an assassin, or any character whose story lives in the space between the torchlight.
Custom Black Onyx dice, factory-direct
Every Black Onyx set is cut, ground, polished, and inspected in-house. Order your own design with custom number fonts, symbol or logo engraving, ink colour, and branded packaging — OEM/ODM welcome, MOQ from 100 sets.
- Custom number font, symbols, or logo engraving
- Your choice of ink fill colour
- Sharp-edge or rounded finish
- Branded, retail-ready packaging
Black Onyx dice FAQ
What is the difference between black onyx and obsidian dice?
Both are black, but obsidian is a natural volcanic glass (glossy, translucent at thin edges, more brittle), while onyx is an opaque banded chalcedony with an even matte-to-glossy surface and slightly better everyday durability.
Is black onyx good for engraved logos?
Yes — its uniform black surface gives high contrast with gold, silver, or white fills, so onyx is one of the best stones for crisp logo and symbol engraving.
