If you cannot make Enriched Diamond in Enrichment Chamber, then it is possible that this recipe does not exist in your version of the game. The video is from Minecraft 1.19.2 and Mekanism 10.3.9.13.
Mods can add stuff that fits within the theming of the game. Why should they add stuff that makes no sense in the context of a fantasy block game. Its clear they dont understand game design, which is why they try to add onto an already successful game instead of creating their own game.
