IMO: NEVER Mikimoto! Seriously! You can get pearl studs that are the exact same quality (if not nicer) for waaaaaaaaaaay less!
You are really dead set on hating Mikimoto, aren't you?

In the same breath, I can tell the OP never to buy Tiffany because it's just silver and you can get a silver bracelet that's just as nice for "waaaaaaaaaay less!"
