Invaluable
A Boston-based online marketplace for more than 5,000 auction houses from 53 countries, with a huge archive of past prices. What it is, how buying works there and what it costs, with a straight link to the site.
- Based in
- Boston
- Houses
- 5,000+
- Price records
- 66 million+
- Apps
- iOS & Android
Go to Invaluable →How buying worksFees
About Invaluable
Invaluable, once known as Artfact, connects bidders with partner auction houses, dealers and galleries in 53 countries. More than 260,000 items are on the marketplace at a time, and its archive holds over 66 million past prices.
The auction houses run the sales and set their own terms. Some 200 of them offer Buyer's Premium Parity, meaning online bidders pay the same premium as people in the room, marked with a purple badge.
What's sold on Invaluable
How buying works at Invaluable
- Make a free accountKeep a credit or debit card on file, then click Register to bid on an auction.
- Wait for approvalThe auction house approves you and sends an email. Bids placed while pending may not reach the auctioneer.
- BidBid live online, leave an absentee bid that SecureBid raises up to your maximum, or bid in timed sales, where a late bid adds 5 minutes.
- PayThe invoice comes 24 to 48 hours after the sale. Pay online by card or ACH, or by the house's own methods.
- ShipEach house sets shipping. Your invoice may offer Invaluable Shipping, your own shipper, or pickup.
What it costs
On Invaluable, the auction house sets the buyer's premium, and the exact amount shows before you confirm a bid:
| What | Cost |
|---|---|
| Buyer's premium | Set by each auction house |
| Invaluable online fee (houses without parity) | Typically 5% of hammer, included in the premium |
| Online fee on lots over $10,000 | Reduced |
| Minimum online fee | $10 on most non-parity auctions (a 25% house on a $100 lot invoices $30) |
| Buyer's Premium Parity houses (200+) | No online fee: same premium as the room |
| US sales tax | Collected by Invaluable in many states |
Shipping, handling and import charges are billed separately.
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UX Search is independent and is not affiliated with or endorsed by Invaluable. Bidding, payment and delivery all happen on the house's own site under its own terms. Information checked October 21, 2026 from invaluable.com (about, help, how to bid, Buyer's Premium Parity); fees and rules can change, so confirm them on the sale page.