Auction houses are not in the business of finding the true market price of a lot. They are in the business of producing the highest possible hammer price, because their commission structure rewards exactly that. Most of what happens in a sale room is legal. Some of it is not. Almost none of it is what the buyer thinks it is.
The chandelier bid
Until a lot reaches its reserve price, the auctioneer is permitted in many jurisdictions to take "bids from the chandelier" — phantom bids that exist only to push the room's bidding upward. Real bidders, watching the auctioneer accept what looks like competing offers, raise their own bids to compete with bidders who do not exist. By the time the reserve is reached, the price has already been inflated by the room's reaction to phantom competition.
The consignor-friendly catalog
Catalog descriptions are the auction house's primary instrument of plausible deniability. The vocabulary is a code:
- "By" — the house believes the work is genuine
- "Attributed to" — the house thinks it might be, but won't promise
- "Studio of," "Circle of," "Manner of" — the house knows it isn't
- "After" — the house knows it is a copy, sometimes a recent one
A buyer who reads the catalog carefully and adjusts their bidding to the precise language of attribution will rarely be cheated. A buyer who reads the catalog quickly, or who trusts the auctioneer's verbal description in the room, will routinely overpay.
Catalog vocabulary is written by lawyers, for lawyers. The buyer who skips it is the buyer the system depends on.
Reserves, buy-ins, and the back room
A lot that fails to meet its reserve is "bought in" — technically unsold, but often quietly sold afterward to a buyer in the room or by the consignor's preferred dealer. The hammer-price record may show no sale; the actual transaction may exceed the reserve by significant margin. This is not technically fraud. It is also not transparent.
Protect yourself
- Read the conditions-of-sale section in full before bidding
- Decode catalog attribution language before adjusting your bid
- Know the lot's reserve when possible — ask the specialist directly
- Treat post-sale "private treaty" offers on bought-in lots with skepticism
- Use a buyer's representative for high-value lots; they have no commission incentive to bid you up