A full-floor aerie near the apex of the Extell Development Company’s blue-glass bastion of billionaires, One57, which offers nonpareil park, water and cityscape vistas, sold for $47,367,491.39 and was the most expensive sale of the week, according to city records.

The residence, No. 88, on the 88th floor at 157 West 57th Street, was purchased through the limited liability company Pac Wholly Own, which records show is associated with the Pacific American Corporation, a New York subsidiary of the HNA Group, one of China’s largest private airline companies. In February, Guoqing Chen, a founder along with his brother, Chen Feng, of HNA’s Hainan Airlines, paid $47,366,989.64 for a floor-through apartment on the 86th floor of the 90-story skyscraper — almost the exact amount as No. 88 when factoring in taxes and fees.

The monthly carrying charges for the recently purchased apartment, which has four bedrooms and five and a half baths over 6,231 square feet, are $12,683.

The week’s runner-up, at $20,110,437.50, which includes taxes and other fees, is another full-floor condominium — unit No. 43A in the Baccarat Hotel and Residences at 20 West 53rd Street. The new glass building, by Skidmore, Owings & Merrill, has interiors by Tony Ingrao, and stands opposite the Museum of Modern Art. The asking and sale price was $19,750,000.