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This object exists primarily within the Adventures of Sonic the Hedgehog continuity.
Information in this article may not be canonical to the storyline of the games or any other Sonic continuity.

Diamondius is an object that appears in the Adventures of Sonic the Hedgehog television series. It is an extremely durable type of mineral.


Diamondius is a type of mineral found underground. It is very valuable and is said to be the strongest substance on Mobius, being so durable that a cage made of it is able to withstand Sonic's Triple Spin.[1]


  • Diamondius is a parody of Diamonds, which were believed to be the hardest material in the world up until the early 21st century.


  1. Askin, Robert (16 September 1993). "Subterranean Sonic". Adventures of Sonic the Hedgehog. Season 1. Episode 2. First-run syndication.
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