How do I authenticate a craft sculpture if I’m buying from a third party?

So you’ve found a beautiful craft sculpture from a third-party seller—maybe at an antique fair, an online marketplace, or a consignment shop. It catches your eye, but you need to be sure it’s genuine. Authenticating a craft sculpture isn’t as complicated as you might think, but it does require a little detective work. Let me walk you through the steps.

First, start with the visual inspection. Look closely at the sculpture’s material, patina, and tool marks. Genuine handcrafted pieces often have subtle irregularities—slight asymmetries, tiny tool grooves, or variations in glaze or texture. Mass-produced fakes tend to be too perfect. If the sculpture has a signature, stamp, or artist’s mark, examine it carefully. Does it look crisp and intentional? Blurry or shallow marks might indicate a later addition.

Next, ask the seller for provenance. A good third-party seller should be able to tell you where the sculpture came from—previous owner, gallery, or estate sale. If they can provide photos of the piece in an earlier setting, or a receipt from an original purchase, that’s a strong sign. Be wary if the seller seems vague or avoids your questions.

Documentation is your best friend. A certificate of authenticity (COA) from the original artist or a reputable gallery adds credibility. But don’t stop there—verify the COA’s details. Look up the artist’s name, check if the style matches their known body of work, and see if the COA includes a signature matching the piece. If the seller offers no documentation, consider hiring a third-party appraiser or art historian who specializes in the type of sculpture you’re buying.

Technology can also help. High-resolution photos allow you to compare details with authenticated examples online. Some artists or studios maintain databases of their works. If you’re buying a sculpture from a well-known craftsman, a quick email to their foundation or estate can confirm whether the piece is legitimate.

Trust your gut, but verify with facts. If the price seems too good to be true, it usually is. Fakes often appear at 50–70% below market value. Ask for a return policy or escrow service—legitimate sellers will accommodate reasonable requests.

Finally, when in doubt, get a second opinion. A local art conservation center or university art department can often provide an informal assessment. Remember: authentication is about building a chain of evidence. The more links you have—visual clues, provenance, documentation, and expert input—the more confident you can be. Happy hunting, and may your next sculpture be the real deal.