Kris Humphries Auctions Off Kim Kardashian's Engagement Ring

Kris Humphries, Kim Kardashian - A Night Of Style & Glamour - P - 2011
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The NBA player sells 20.5-carat ring for less than half its reported $2 million value, with plans to donate the proceeds to charity.

The ring symbolizing Kim Kardashian's ill-fated 72-day marriage to Kris Humphries has been sold.

The engagement ring sold for $749,000 at the Christie's auction. While that was less than half the ring's reported worth of $2 million, the sale price exceeded the presale estimate of between $300,000 and $500,000.

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"It bounced between two phone bidders and two bidders in the back of the room," a Christie's spokesperson told E! News. "Good participation all around. It was the last item in the morning session." 

The 20.5-carat ring had been listed as "impressive diamond ring" in Christie's Magnificent Jewels auction.

"Kris is very pleased with the final result," Humphries' rep told E! News, adding: "The ring is indeed Kris' property that he received through his marriage dissolution. He has long-since moved on and is very much looking forward to ... to returning to the court this upcoming NBA season as a Boston Celtic."

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The NBA player plans to donate the proceeds to a yet-to-be-determined charity.

Kardashian and Humphries were married Aug. 20, 2011, in a splashy multimillion-dollar wedding in Montecito, Calif. They split after 72 days, and their divorce was finalized June 2013 after a public, protracted battle.

Kardashian recently gave birth to her first child, a daughter, with boyfriend Kanye West.