Modelled in the form of a Sasanian metal ewer and applied with Hellenistic-inspired decoration, the 14½in (37cm) high piece sold well above its £40,000-60,000 guide to London dealers Eskenazi for £2.3m at Sotheby's on May 13.
It had been consigned by a private Japanese collector and bore a label for the early 20th century collection of Paris-based Chinese art dealer L Wannieck.
Sotheby's also secured a bid of £3.3m from the Asian trade for a 5½in (14cm) Xuande blue and white facetted vase during the sell-out single-owner sale of Tokyo collector Tsuneichi Inoue.
The price was the highest of the series as ATG went to press, with a further sale at Christie's still to go.
A longer report on the Asian art series of auctions will appear in a future issue of ATG's printed weekly publication.