nineMinecraft is a joke site.
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this setting is to help visualize the fake crystal and as you can see it switches to the real one once the server confirms your placement. you can change the color of the color tint too.
Client Side Crystals

Client Side Crystals

Mod

Makes your crystals show instantly client side when crystaling to look look like zero ping. (Works with Marlow's optimizer) Allowed on VTL and mcpvpclub.

Client DecorationEquipmentOptimization
212.4k downloads
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Client Side Crystals 1.21.11

Download Report

Changelog

Use This version of mod menu for it to work https://modrinth.com/mod/modmenu/version/17.0.0-alpha.1 or newer idk

Files

ClientSideCrystals-1.21.11.jar(88.37 KiB) Primary Download

Metadata

Release channel

Alpha

Version number

1.21.11

Loaders

Fabric

Game versions

1.21.11

Downloads

3559

Publication date

December 9, 2025 at 10:56 PM

Publisher

cutebow

cutebow

Creator

Version ID

External resources

SourceDiscordKo-fi

Project members

cutebow

Creator

bowcute

Tester

Technical information

License
MIT
Client side
required
Server side
unsupported
Project ID