Private Sales Channels Transform Into Primary Liquidity Venues for Cartier and Heritage Assets

Private sales channels at major auction houses have transformed from a secondary backroom service into a primary liquidity venue for elite collectors trading heritage assets. This structural realignment reflects a broader desire among sophisticated market participants to bypass the public volatility of the traditional hammer, opting instead for the discretion and immediacy of private-treaty transactions. As market cycles compress and macroeconomic uncertainty prompts a flight to safety, the traditional seasonal auction calendar is increasingly supplemented—and in certain segments, eclipsed—by structured, off-market transactions curated by specialized departments. This institutional shift is quantified by the scale of private transactions. In the peak year of 2020, Sotheby's generated a record $1.5 billion in private sales, and the firm has consistently banked between $1.1 billion and $1.3 billion annually in private transactions since that period, as detailed by Artnews. This private-treaty volume is heavily concentrated in high-value assets, with specialized market publications tracking transactions specifically in the $1m and greater tranche over multi-year periods, as documented by The Art Newspaper.