How do I sell a piece?

Adding an item has four steps: Photos, Details, Provenance (optional) and Price & shipping. At the end you choose List it to put it up for sale, or Save to collection if you do not want to sell it yet. Read how to sell a piece.

Does Colectin charge the seller a fee?

No. Colectin charges the seller no commission on a sale and you are credited the item price. The buyer pays the fee, on top of the price. You only pay, if there are any, shipping surcharges or return labels at your expense. Read how to sell a piece.

What photos do I need?

Photos are JPG, PNG or WEBP and you need at least one. The first one is the cover and you can change it with Set as cover. See the photo guide and read how to sell a piece.

Can I import my listings from another marketplace?

Yes: paste the links to your listings (one per row, several at once) and Colectin fills in the details. Rookie has 5 imports for life; All Star and Legend are unlimited, and Legend can also import a whole seller profile. Read how to sell a piece.

How to list a piece for sale

Q: Can I start with photos and let Colectin fill in the details?

Yes. Upload your photos and Colectin identifies the piece and fills in the details for you; review the highlighted fields before continuing. Read how to sell a piece.

Updated October 24, 2026

The four steps

Listing a piece is a wizard with four steps in this order: Photos, Details, Provenance and Price & shipping. Provenance carries the OPTIONAL badge: you can skip it.

Photos

You need at least one photo to continue. The formats are JPG, PNG and WEBP, and the first photo is the cover. When you upload them, Colectin reviews the images and shows you a checklist of required and recommended shots, with notes per photo (blurry, dark, glare, low resolution or cluttered background) and a notice if one looks like a stock image. You can continue anyway. In How to photograph your item you have the shots each piece type needs.

Details and provenance

You can start from the photos: Colectin identifies the piece and fills in the details for you. Review the highlighted fields before you continue. If the piece is graded or certified, add the certification record (lab, grade from 1.0 to 10.0 and certificate number) and at least one photo of the slab, the sticker or the certificate. The number and the photo are mandatory when you add the certification. Provenance is optional.

Price and sale mode

Choose Fixed price (buyers buy at the price, no offers), For sale (buy now or send an offer) or Offers only (no price, offers only). With Accept offers you let buyers offer below the price.

Publish or save

At the end you choose List it for sale or Just keep it in my collection, and confirm with List it or Save to collection. If you need to, Save & exit keeps the draft so you can continue later; a saved draft can be discarded. You can also import from another marketplace: paste the links, one per row, and Colectin fills in the details.

After you publish

The first market valuation is calculated automatically when the piece is created. On the Rookie plan you have 5 free valuations for life, and only those that produce a price count. Colectin takes no commission from the seller: you are paid the item price. While a piece has an open offer or an order in progress, you cannot change its details, its photos or its shipping.