The opening of the Bvlgari Hotel Tokyo is set for April 4, 2023. Reservations can now be made on the Bvlgari website. I tried a dummy booking in late April and the price for their basic Superior Room (56sqm/603 sqft) is 354,600 yen/night (US$2,664/night). This is far above the pricing at most other Bvlgari Hotels and makes Aman Tokyo's pricing seem like a tremendous bargain. The pricing for an entry-level room at Bvlgari in Beijing or Shanghai can be as low as $500-600/night, while Bvlgari London starts at around $900, such a room at Bvlgari Milano will set you back $2,400/night. Apparently, Bvlgari thinks that Tokyo is teeming with well-heeled clients willing to pay such a price. At only 98 rooms, that may be possible, but I will not be surprised if they wind up substantially lowering their price after a time.
https://www.bulgarihotels.com/en_US/tokyo