NEW YORK (CNN) -- A three-day action of Star Trek memorabilia beamed up some $7.1 million in total sales, Christie's auction house said Saturday.

The figure far exceeds Christie's original estimate of $3 million for the entire auction.

William Shatner, who starred as Captain Kirk in the original "Star Trek" series

On Saturday, a replica of the Starship Enterprise-D used in "Star Trek: The Next Generation" sold for $576,000 to an anonymous buyer and American private collector, said Christie's spokesman Rick Pike. Christie's earlier had estimated the replica would sell for between $25,000 and $35,000.

The auction kicked off in New York City on Thursday, just a month after the 40-year anniversary of Star Trek's television debut. More than 1,000 lots of official Star Trek contents from the archives of CBS (Charts) Paramount Television Studios were put up for sale. Bids were accepted from the floor, by telephone and through the "Christie's Live" online bidding channel.

On Friday, a 2-foot Borg cube model with intricate black latticework went for $96,000. Its estimated worth was between $1,000 and $1,500.

A captain's chair once belonging to Capt. Jean-Luc Picard from the bridge of the Starship Enterprise fetched $52,000 on Thursday, light-years beyond its estimated selling price of $9,000. A model of the Starship Enterprise-E fetched an out-of-this-world $120,000.

Some of the other auction highlights included props, furniture, weapons and blueprints from both the television series and the motion pictures. Among high-demand items were the Star Trek costumes worn by all the original main characters: Capt. Kirk, Spock, Scotty and Lt. Uhura.

Christie's is privately held. Shares of its rival in the auction business, Sotheby's (Charts), closed lower Friday.

--CNN's Brian Vitagliano and Mythili Rao contributed to this report.

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