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Buyer Education

Certificate of Authenticity — What Every Art Buyer Needs to Know

The COA is your proof that what you bought is real. Here's what to look for and why it matters.

A Certificate of Authenticity (COA) is the single most important document that comes with an original artwork. It's the art world's equivalent of a car's title — without it, proving what you own becomes much harder.

What Is a Certificate of Authenticity?

A COA is a signed document that verifies an artwork is genuine. It typically comes from the artist, their estate, or a gallery authorised to represent them. It's not a receipt — it's a declaration of authenticity.

Think of it as the artwork's identity card. Without it, you have a painting. With it, you have a documented painting — and that distinction can mean thousands of euros in value difference.

What a COA Should Include

A proper Certificate of Authenticity contains:

  • Artist's full name and signature (handwritten, not printed)
  • Title of the artwork
  • Date of creation
  • Medium: Oil on canvas, lithograph on paper, etc.
  • Dimensions: Height × width (and depth if applicable)
  • Edition number (for prints and lithographs): e.g., "3/50"
  • Unique identifying details: Photo of the work, inventory number, or catalogue reference
  • Gallery/issuer name and contact information
  • Date of issue

Why COAs Matter

For Resale Value

If you ever sell the artwork, a COA significantly increases its value. Auction houses and galleries require authentication documents. Without a COA, proving an artwork's origin becomes expensive (professional authentication can cost €500-€5,000+).

For Insurance

Insurance companies want documentation when you file a claim. A COA, combined with your purchase receipt, establishes the artwork's identity and value. Without documentation, you may receive significantly less in a claim.

For Your Collection

If you're building a collection, proper documentation is essential. Art advisors, appraisers, and estate planners all need COAs to properly evaluate and manage art assets.

For Peace of Mind

Knowing you own a genuine, documented artwork simply feels different. It transforms a purchase into a provenance chain — you become part of the artwork's history.

Red Flags: When a COA Is Suspicious

  • Printed signatures only: A real COA has at least one handwritten signature
  • No specific artwork details: Generic certificates that could apply to any painting
  • Self-issued by the seller (not the artist or gallery): Anyone can print a piece of paper
  • No photo of the artwork: Modern COAs should include a photo for positive identification
  • No contact information: If you can't verify the issuer, the COA is worthless

Our COA Standard

Every artwork purchased from Heaven Art Shop includes a Certificate of Authenticity that contains:

  • Full artist name, biography reference, and exhibition history
  • Artwork title, date, medium, and exact dimensions
  • Edition details (for Zablach's lithographs)
  • High-resolution photograph of the specific artwork
  • Gallery stamp, date of issue, and contact information
  • Provenance statement confirming the artwork was acquired directly from the artist

This documentation travels with the artwork forever — protecting your investment whether you keep it for a lifetime or pass it on to the next collector.

Every Artwork Comes with a COA

34 authenticated original artworks from €700. Sacred lithographs and African oil paintings, each with full documentation.

Browse Authenticated Art