One pear diamond, set close, pointing up. It's the shape that reads first from across a room, and the one people notice before they notice anything else you're wearing. The one you buy when you want to be asked about it.

An oval sits longer than a round and softer than a pear, which is why it suits almost everyone. The quiet one of the two, and the easier one to wear every day without thinking about it. You'll still catch people looking.