What Makes a Good Auction Lot Description?

A good auction lot description is specific enough that a stranger, or a machine, can tell exactly what the item is, what condition it is in and why it matters, without ever handling it. That is the whole standard. Where you start depends less on what you sell than on how cataloging currently feels in your business: either it is the job that gets squeezed whenever a sale is tight for time, or it is a craft you already employ specialists to practice. Both have a problem. They are not the same problem.

This is the third of nine articles drawn from Marketing for Independent Auctioneers in 2026, our playbook on building demand you own. The first looked at renting your demand versus owning it; the second at building a bidder list that is actually an asset. This one is about the page all that traffic lands on, and the reason so much of it leaves again.

What does a good auction lot description actually have to contain?

If cataloging feels like another box to tick, a back-office job squeezed into the last two days before a sale goes live, the fix is not enthusiasm. It is a standard you apply every time. Name the item precisely: make, model, size, material. State the condition honestly, including the parts that are not flattering. Answer the questions a serious buyer would ask before committing money, rather than waiting for an email that mostly never comes. File the lot under a real category instead of one of ten catch-all buckets. Photograph it from several angles in good light.

None of it is difficult, just easy to skip, and the cost of skipping is invisible, which is why it keeps happening. Vague titles, three-word descriptions and photographs with nothing written underneath force the buyer to guess, and most will not guess. The lot still sells, to whoever was already in the room, and nobody ever reports the bidders who never arrived.

The right-hand column is not longer for the sake of it. Every line is a fact a serious buyer checks before bidding and a field a machine can read. It builds confidence, cuts disputes, and gets found by search and AI tools. Done consistently, your catalog stops being a list and starts being a sales engine.

If your catalog is already scholarly, why is it still invisible?

Plenty of auction houses do not have that problem. Cataloging is an art of its own, you employ specialists, and an entry already carries attribution, provenance, literature and condition. Your risk is the opposite one, and harder to see: the description is excellent, and still invisible. Scholarly language and the words a buyer types into a search box are not always the same words. So the question for a strong catalog is not whether it is good enough. It is whether it is working hard enough. Four habits make the difference.

• Lead the title with the terms a buyer would actually search. Maker, period, category, material. Keep the scholarly detail, but put it after the words people look for.
• Include the plain-language name alongside the correct one. Someone hunting a “Georgian mahogany chest of drawers” should find the piece you have cataloged as a “George III mahogany serpentine commode”. That is not dumbing the entry down. It is adding the door the buyer is already knocking on.
• Give the facts as fields a machine can read, not only as prose. Date, maker, medium, dimensions, provenance, condition, estimate. A paragraph that buries the dimensions in its third sentence is useless to everything but a human reader.
• Keep the estimate, condition report and inspection terms on the page itself, not locked inside a PDF that search and AI tools cannot parse. A condition report nobody can open is a condition report nobody has read.

Why does a vague description keep the hammer price down?

Wherever you started, both routes arrive at the same second payoff, and it may be the bigger one. A detailed, honest description reduces the buyer's uncertainty about exactly what they are bidding on. Uncertainty is what keeps bids low.

Watch how a bidder behaves when a description is thin. They do not walk away. They discount. They price in the chance that the hours are higher than implied, that the crack was not mentioned, that the attachments in the photograph are not in the lot. That discount is applied quietly, before the sale opens, and it lands on your consignor's settlement. Disclosure works the same way in reverse: stating a fault plainly does not cost you the bid, it tells the buyer everything else in the entry can be trusted, which is also why good descriptions cut disputes after the sale.

How do you catalog faster without dropping the standard?

The honest objection is time. A large industrial sale or a house clearance leaves no room for a considered paragraph per item, and telling a busy auctioneer to write better is not advice.

Two things help. The first is a lightweight template per category, covering the fields a buyer of that kind of item always wants, so cataloging becomes filling in known blanks rather than starting from nothing. Build it once and consistency follows. The second is that you no longer type every word. AI cataloging tools draft descriptions from your photographs and your own fields, so specialist time goes into checking and enriching.

Questions auctioneers are asking

How long should an auction lot description be?

Long enough to answer the questions a serious buyer would ask, and no longer. For a 20-tonne excavator that means make, model, year, hours, weight, cab, attachments, serial and terms. For a piece of jewelry it means metal, stones, weights, marks, dimensions and condition. Completeness is the target, not length. A short description covering every field a buyer checks beats a long one that reads well and settles nothing.

Does it really matter which category I file a lot under?

Yes, because category is how most buyers browse and how machines understand what the lot is. A real category puts the item in front of people who collect that kind of thing. A catch-all bucket such as “general” or “miscellaneous” puts it in front of nobody in particular, which is the same as hiding it. If you find yourself using the same three buckets for most of a sale, the category list needs work, not the lots.

Should I describe damage in the listing?

Always. A disclosed fault is priced; an undisclosed one is discounted by every bidder who suspects it might be there, and then argued about after the sale. Stating condition honestly, including the chip, the crack, the missing key or the hours nobody wants to see, is what makes the rest of the entry believable. It also protects the consignor, because the buyer who knew what they were getting does not come back for a refund.

Can AI write my lot descriptions for me?

It can write the first draft. Tools such as PiQ, the AI cataloging feature in AIM, generate a description from your photographs and your own fields, and the auctioneer reviews, corrects and publishes. Auction houses using that workflow catalog up to five times faster. What AI cannot do is supply the attribution, the provenance or the judgment about condition, which is exactly why a person still signs off every entry. It replaces typing time, not expertise.

Next in the series: how to make your sales findable by search engines and AI tools , which is won or lost on the lot page itself. In the meantime, you can read how other auctioneers run their sales or talk to our team.