Mystic Diamond
by KatkoNINE
Mystic Diamond lets players spend a diamond to receive a chosen stack of 16 items from a large menu, and the mod is still in early development.
What it does
Holding a diamond and sneaking while right-clicking opens a menu that lists a wide selection of blocks and items from across the game. The player picks the one wanted, and selecting it consumes the diamond and grants a full stack of 16 of that item. The author describes the mechanic as overpowered, since the items gained can be turned back into diamonds, which lets the process repeat without end.
Mystic Diamond is a NeoForge mod for Minecraft 1.21.1 only, published by KatkoNINE under All rights reserved, so it is not open source. Every player and the server need a copy of the mod. The author describes the mod as unstable and says several glitched behaviors and random errors remain unfixed, so backing up worlds before use is advised.
Key features
Diamond conversion menu
Shift and right-click with a diamond in hand opens a menu with a wide selection of blocks and items.
Fixed stack reward
Each chosen item is delivered in a stack of exactly 16, and the diamond used for it is destroyed.
Infinite resource loops
Items gained from the menu can be turned back into diamonds, which allows resources to grow without limit.
Early development status
The mod is still in early development, and its author lists several known glitches that have not been fixed.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Creative and sandbox worlds
Players testing builds or running experimental worlds can pull large amounts of any block or item from a single diamond.
Who it’s for: Players who want a quick way to collect items in single-player or on a server that accepts an early, unstable mod. Server owners should back up worlds before installing it.
How it compares
Mystic Magics is a server-side mod with Fabric, Forge, NeoForge and Quilt files for 1.21 – 1.21.5 and is open source under the BSD 3-Clause License, so players can join without installing it. Universal Save Backup runs on client and server with NeoForge files for 1.21.1 and is released under the MIT License, but it is not open source in the same sense as Mystic Diamond's license. Nautrite Ore is published for NeoForge only, for 1.21.8, under All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Mystic Diamond | NeoForge | 1.21.1 | Client and server | 2026-08-24 |
| Mystic Magics | Fabric, Forge, NeoForge and Quilt | 1.21 – 1.21.5 | Server required, client optional | 2024-12-23 |
| Universal Save Backup | NeoForge | 1.21.1 | Client and server | 2026-08-24 |
| Nautrite Ore | NeoForge | 1.21.8 | Client and server | 2026-08-29 |
Questions
Which loader does Mystic Diamond need?
Does the server need Mystic Diamond?
Is Mystic Diamond stable enough for a survival world?
In the catalog
Mystic Diamond is one of 4,058 Storage mods on ModsFinder, and one of 1,794 Storage mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from KatkoNINE
Similar mods
What the author says
About this mod This mod adds a powerful, magical diamond that lets you conjure items out of thin air. However, it's highly unstable and still in early development. How it Works Shift + Right Click: Hold the diamond, sneak, and right-click to open a massive menu with almost every block and item in the game.
Official listing
- Modrinth page
- modrinth.com/mod/mystic-diamond
- Owner
- KatkoNINE
- Published
- 2026-08-23
- Updated on Modrinth
- 2026-08-24
- Facts verified
- 2026-10-15