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The Marie Louise Diadem is a highly detailed, elegant Sims 4 crown cc with intricate metalwork and gemstones. It comes in two versions – a turquoise version and an emerald version, so you can switch up the aesthetic depending on your Sim’s styling. Note that the tiara is high poly, which means you’re getting very fine detailing and a more realistic finish in CAS and close-up shots. It’s also compatible with a hat slider, making it much easier to adjust the fit across different hairstyles.
Follow these steps to install The Marie Louise Diadem on your Sims 4 game:
Download the mod file from the link above. Sims 4 mods typically come as .package or .ts4script files.
Open your Sims 4 Mods folder. The default location is: Documents/Electronic Arts/The Sims 4/Mods
Place the downloaded file directly into the Mods folder. You can organize mods into subfolders up to one level deep.
Launch The Sims 4 and go to Game Options > Other. Make sure "Enable Custom Content and Mods" is checked.
Restart the game if it was already running. The mod should now appear in your game.
Important: Always back up your save files before installing new mods. After Sims 4 updates, mods may need to be re-downloaded or updated by the creator.
Platform
The Sims 4 (PC/Mac)
Pro tip: If a mod stops working after a game update, check the creator's page for an updated version. Broken mods can cause the game to behave unexpectedly.
Created by
Thesimpireblr
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Published
April 10, 2026
Source
MustHaveMods.com
Last Updated
May 28, 2026