Melissa and Jason
Engagement Announced: Sometime around 9:59PM on February 28th, 2009
Called off: About 5 minutes later
Jason, Jason, Jason—this single dad was a fickle one. As season 13's Bachelor, Jason proposed to Melissa with a marquise-cut diamond ring encrusted with 170 smaller diamonds set in platinum designed by Neil Lane. Minutes after the finale aired, Jason broke up with his fiancée on the infamous After the Final Rose reunion show stating that he still had feelings for runner up Molly. Jason and Molly tied the knot in March 2010 (see the jewelry worn at their wedding here). Melissa went on to a successful stint in Dancing With the Stars and ended up marrying her hometown boyfriend in December 2009.
See more marquise-cut engagement rings.