High Museum of Art

Elton John is downsizing — and the superstar’s former penthouse residence in Atlanta has been emptied for a series of auctions at Christie’s starting on Feb. 21. The items are expected to bring in an estimated $10 million.Want the Yamaha conservatory grand piano where the Rocketman plunked the keys of his Broadway shows “Billy Elliot” and “Aida?” It will cost roughly triple what similar models sell for online, with a high estimate of $50,000.How about Julian Schnabel’s portrait of the superstar dressed in a gown and ruffled collar? The auction house is seeking $300,000.And the most expensive object, a 2017 Banksy painting of a masked man hurling a bouquet of flowers, secured directly from the anonymous artist, is expected to sell for nearly $1.5 million.Included in the auction: prescription sunglasses by Sir Winston Eyeware that Elton John owned; a diamond pendant necklace set with round diamond letters spelling “The Bitch Is Back,” estimated at $20,000-$40,000; a Cartier sapphire ring, 18k yellow gold, $50,000-$80,000.Vincent Tullo for The New York TimesJohn declined to comment on the auction. (Agostino Guerra, a Christie’s spokesman, cited “long-planned scheduling conflicts.”) However, the singer’s husband and manager, David Furnish, discussed the sale in a recent interview.We are having trouble retrieving the article content.Please enable JavaScript in your browser settings.Thank you for your patience while we verify access. If you are in Reader mode please exit and log into your Times account, or subscribe for all of The Times.Thank you for your patience while we verify access.Already a subscriber?  More