Reality star Casey Reinhardt knew how to make a splash on Laguna Beach and The Hills alongside former costars Lauren Conrad and Kristin Cavallari, so it's not surprising that her engagement ring is one of the most dazzling we've ever seen! Reinhardt's longtime boyfriend, Sean Brown, popped the question on August 12, and she posted a sweet Instagram photo of the proposal.

https://www.theknot.com/content/casey-reinhardt-laguna-beach-engaged-engagement-ring