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.
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