Answer:
A caribbean shape that makes ships disappear
At night I come without being fetched. By day I am lost without being stolen.
My first is an insect; my second is a border; my whole puts the face in a tuneful disorder.
So cold, damp and dark this place. To stay you would refrain, yet those who occupy this place do never complain.
What's black when you get it, red when you use it, and white when you're all through with it?
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.