There are two options – A version with the collars only. A version with the layered necklaces included.

Anamnesis Necklace – Includes layered Chain necklaces
Lost Allagan Necklace – Choker/Collars only (preview https://bit.ly/2UJYNjN)

Notices
– Fitted to vanilla female body. The necklaces will have clipping issues on larger chest sizes.
– Not dyeable but easily edited via Colourset Editor
– Can be moved to another item using the built in Mod Converter
– Feel free to edit or refit. Contact me before reposting/redistributing.