Amber(Des)

Amber: exotic crafting material.

This organic gem is formed by crystallized sap in the heart of magical trees. It is infused with Life and Nature energy and can be used in Alchemy or as an ornament.

+2mp/ minute regen on items (might need more than one gem and doesn't stack perfectly with other items with the same modifier)

Used in the creation of some healing items.

Can be used to extract Life and Nature Essence via Alchemy. 1/10 Essence per 200 amber gems.

Reference
Acquired in Chapter 81 "He Told A Girl She Could Decorate"