Conversion of alexandrite to cats eye

[VoiceMemo]

I would like to suggest the ability to convert alexandrite to a cat's eye via an npc.
You would keep trading npc till you reach 30k and a cat's eye would be returned to you.

Cat's eye would still not be sendable and you would not be able to take out of npc, but this would save space versus people having to store 30k alex if not at the point of turning into npc for quest.