It definitely exists. There's a red lense for sale on our server Peregrine! Some lucky bugger has been making a killing on these for weeks now selling them at a million per lense. I believe our LS ALC has a silver alembic +1 too after purchasing one. They can be turned into glasses too but I'm not paying a million to make an item that would be lucky to sell for half that.

I believe the goblin headman theory, but it's difficult to test since the party cap was reduced to 8. It's even harder to zerg kill these rank 90 mobs now.