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Invaluable (formerly Artfact) is the world’s largest online auction marketplace of fine and decorative arts, antiques, collectibles, and estate sales. Across all three of our properties,,, and, more than 30 million bidders per year arrive in the virtual salerooms of the world’s premier auction houses. Collectors have unprecedented access to the items they are most passionate about. Invaluable’s live online bidding platform allows collectors to bid in real-time on auctions held around the world.

Bidders can search and buy from over 160,000 auctions annually with a combined value of over $25 billion. Invaluable’s best in class price database includes more than 57 million complete auction results totaling more than $204 billion in value, including information on more than 500,000 international artists.

As the world’s leading provider of SaaS technology and marketing services to the $40 billion live auctions market, Invaluable provides auctioneers with marketing and e-commerce solutions including auction listings, online bidding, websites, and auction management software (RFC Systems) reaching over 25,000 estate and art auctioneers around the globe.

Founded in 1989 in Boston, with offices in Pennsylvania and the United Kingdom, Invaluable currently has over 80 employees.

Live Bidding

Invaluable Live! is the world's premier live auction bidding platform, enabling collectors and dealers around the globe to bid online in real-time on over 100,000 upcoming items for sale at auction. Now you can experience the thrill of bidding, no matter where you are! All you need is a computer and an internet connection! Invaluable Live! requires minimum system requirements, and the intuitive design makes the Invaluable Live! bidding console easy to use. No special downloads required!

Search upcoming auction catalogs from more than 150 exclusive international partner auction houses. Invaluable Live! catalogs are detailed with estimates, full size images, and descriptions for each lot. Looking for a specific item at auction? Invaluable makes it easy. Use Invaluable's user-friendly auction filters or the Advanced Search feature.

Unable to bid live on items of interest at an upcoming auction? Place an anonymous absentee bid delivered safely, securely, and confidentially using our SecureBid™ technology. If you are outbid prior to the auction's start time, Invaluable will notify you.

Get alerts when items you're looking for are upcoming at auction with our Email Alerts! Save keyword searches or favorite artists and let Invaluable do the searching for you. You will be notified via email when an item you are looking for is newly listed at auction.

If you're ready to experience the live auction action, Register now - it's free!


The shipping process varies between auction houses, but most facilitate shipping through a third-party vender. Depending on the item, some houses will ship via USPS, FedEX or UPS. The buyer is responsible for applicable shipping charges unless otherwise noted in the auction house terms and conditions. These fees are subject to change depending upon the auction house and the particular item for sale, and are set by the auction house. To review the shipping section for the auction house, click the terms and conditions link found below the description on any lot details page.

Price Results

Search unabridged upcoming and past auction catalogs and price results for 2,000+ prestigious, international art, antiques, and collectible auction houses of all sizes including: Artcurial, Christie's, Doyle's, Eldred's, Gallerie Koller, Hindman, Ritchie's, Sotheby's, Swann, Tajan, Weschler's and more.

Use our databases to answer the important questions that art and antiques professionals and collectors continue to ask about buying, selling, and valuing:

  • What is it worth, and why?
  • Who made it?
  • Where does it come from?
  • What is it?
  • Where may I buy one?
  • When will it be for sale?
  • Where will it be for sale?
  • Who should sell mine?

Fine Art

Invaluable's Artist Database is the ultimate resource for art enthusiasts and collectors, offering you informational pages on over 100,000 international artists. The Fine Art database represents over 2 million works of art sold, or upcoming at auction. With new artists and lots added daily, the database provides the most up to date information from around the art world. Each artist page contains valuable research including:

  • Artists Biographies
  • Artist Genres, related artists, and related information
  • Works of art sold at auction for more than 100,000 artists
  • Upcoming art available at auction from over 1,000 auction houses worldwide

Find your favorite artists in three ways: the alphabetical artist list; a selection of prominent artists sorted into in over 200 defined genres, or a selection of the Invaluable 1,000™ most prominent artists.

Searching Invaluable databases is fast and easy. Depending on which of our flexible subscriptions you choose, you'll be able to research the most comprehensive database of past auction results for as little as $20 per month; or, if you're interested exclusively in fine art, you can receive auction alerts and access auction prices for over 500,000 artists for as little as $35 per month.

For Auctioneers

Invaluable products have helped over 2,000 prestigious international auction houses stay up to date in the rapidly changing auction marketplace. Our product selection varies from complete custom designed software solutions to upcoming auction promotions. Invaluable online catalog listings and live bidding software can drastically boost traffic to your sales, and our established bidding community includes collectors and dealers from around the world.

Invaluable has been in the auction house software and database businesses for more than 20 years and specializes in matching products to your auction house's individual needs. For more information on our auction house services, contact

Are you an auction house looking to add Invaluable Live! online bidding to your sales? Contact Auction House Sales today by calling +1 617 746-9800 or email to learn how adding Invaluable Live! online bidding will dramatically improve your auction results.

Interested in linking to us? Any website may create a link to Invaluable. Visit our Link to us page for more info.

Contact Us

Invaluable, LLC.
38 Everett Street
Suite 101
Boston, MA 02134