Welcome to Day 4 of our "Larsen's Jewelry 101 " game. Everyday through Friday we will post an item. "Comment" your guess and closest wins (ties included). Daily winners will be entered into a random drawing for a $75.00 gift card. This famous diamond was discovered in India, has been re-cut and resides in the British Crown Jewels in the Tower of London. What is it's carat weight?