Which Recently Engaged MTV Reality Star Flashed Two Huge Diamond Sparklers on Twitter? (PHOTOS)

Which bodacious reality star flashed two ridiculously large diamond engagement rings on Twitter? The gorgeous sparkler on her fourth finger is a 5-carat engagement ring that she received from her fiance in September 2012! (The other 13-carat diamond ring is is not hers.) Think you know who she is? HINT: Her super-popular MTV reality show series just ended.

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