Authenticity Guarantee

Sell fine jewellery with confidence on eBay. Verified by the experts at GIA^®, the Gemological Institute of America^®.

Authenticity Guarantee is independent from, and not associated with, any brands sold on eBay. GIA^® is not affiliated with eBay or sellers other than as a verifier of items.

Professional authentication

A team of professionally trained authenticators meticulously inspect your item before sending it to the buyer, so you’re protected.
Verified returns

If the buyer returns your item, the authenticators inspect it before sending it back to you.
No extra cost to you

eBay covers all costs of the authentication process.

Easy for you, easy for your buyer

Authentication
you can trust

Our authentication collaborators at GIA^® will authenticate your jewellery and ensure that it's as described in the listing within two business days.
Unique
authentication card

The jewellery will receive a unique authentication card with a QR code to confirm it has been verified.
Real-time
status updates

Authentication and shipping status will be updated in your order details every step of the way.

How it works

List your eligible item, and an Authenticity Guarantee badge will appear.
Once a buyer purchases your item, you'll ship it directly to the authenticator to be verified.
Your jewellery will go through a multi-point inspection process and receive a unique authentication card.
The jewellery will be delivered safely to the buyer via two‑day, signature-required delivery.

Authenticity Guarantee for jewellery is limited to a review of claims regarding item quality and characteristics listed by the seller. These claims are assessed within defined ranges and tolerances.

Learn more

Meet the experts

GIA^® is a non-profit organisation dedicated to ensuring the public trust in gems and jewellery by upholding the highest standards of integrity, academics, science and professionalism. For more information, please visit gia.edu.

An expert using professional equipment to examine technical properties of a ring

When selling under our new Authenticity Guarantee program, it's important to make sure you:

Choose the right item condition.
Describe any defects, flaws, scratches or other wear and tear in the condition description.
Take high-quality pictures that show the jewellery, and any included accessories.
Tip: Take photos from all angles, and remember to take pictures of any defects, flaws, scratches or other wear and tear.
Package your jewellery safely and securely to ensure a smooth authentication process.