Gabrielle Union is the latest celebrity to get engaged! The actress announced her big news on Instagram over Christmas weekend, sharing a snap of the ring fiancé Dwyane Wade gave her when he popped the big question. If you can't get enough of the engagement ring bliss, there are plenty of celebrity gems out there to ogle. Check out all the famous engagement rings, from Kim Kardashian's 15-carat diamond rock to Reese Witherspoon's cool cut and more. Some of the relationships have come and gone, but ring photos are here to stay. Click through to see over 100 of the precious gems!