My grandpa gave me this stunner (I picked, he paid) for my 21st birthday which is next week. I couldn't be happier with it, it is just so pretty. It's marked 0.50 9k, and also TWI (or TW1, maybe?) IND. It's so sparkly, fits my big fat finger perfectly, was an absolute bargain and I'm in love. Also, I hope I've posted this correctly, I'm new here. Sorry if I'm on the wrong board.