Congrats are in order! Duchess Kate’s younger sister, Pippa Middleton, is now engaged to financier James Matthews, and is planning a wedding for next year. Her ring is a gorgeous vintage/art deco design, which features a stunning Asscher-cut diamond. While the ring’s designer and details haven’t been released yet, jewelry experts have estimated that the center stone totals 3 ct, and the surrounding stones add an additional estimated 1.5 ct to the ring. We are 100% gawking over her new bling (who wouldn’t be?)!