Quotation1 This red corundum is nearly as hard as a diamond. Quotation2
— Description, Sonic and the Black Knight[1]

The Ruby is a collectible item that appears in Sonic and the Black Knight.


The Ruby is needed to craft the following swords:


  • No: 104
  • ID Point Price: 3
  • Rarity Level: 3/10
  • Item Type: Gem Stone
  • LocationThe Cauldron


  1. Official in-game description of Ruby in Treasury, item 104/247.

Main article | Gallery | Script | Staff | Glitches
Community content is available under CC-BY-SA unless otherwise noted.