A diamond is forever, but most reality TV engagements aren't. That doesn't mean we can't have some fun revisiting the stunning rings exchanged over the last two years by former Bachelor and Bachelorette contestants, though.

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.

Photo: Courtesy of Neil Lane/Courtesy of ABC (inset)

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