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.

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.

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 do I sell a graded or certified piece?

Updated October 24, 2026

To sell a graded or certified piece, add its certification to the listing. The certification is saved as a record of the piece, with the lab, the grade and the certificate number.

What details you need

The lab that graded the piece.
The grade, on a scale from 1.0 to 10.0.
The certificate number.
At least one photo of the slab, the sticker or the certificate of authenticity.

When it is mandatory

You add the certification section to the listing yourself. When you add it, the certificate number and the photo of the slab, the sticker or the certificate are mandatory.

Photos of the piece

Besides the photo of the certification, follow the photo guide for the rest of the item.

Read how to list a piece, the photo guide and what the market valuation is.

FAQs on this topic

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.
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.
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.

Need more help?

Write to us from the support chat or by email.

Go to support

support@colectin.com