Counterfeit designer goods can be presented with convincing photographs, copied receipts and confident descriptions. No short checklist can authenticate every model, and a serial number or date code alone is never proof. The safer approach is to assess the seller, the evidence and the authentication process together.

Red flag 1: the seller avoids item-specific evidence

Be cautious when a listing relies on stock photographs, crops out identifying construction details or refuses reasonable requests for additional images. The photographs should consistently show the same bag, including its exterior, interior, corners, hardware and any relevant markings.

Red flag 2: the price is used to force urgency

A low price is not proof of a counterfeit, but a dramatic discount combined with “pay now” pressure is a reason to pause. Compare the exact model, size, material and condition with credible pre-owned listings. If the seller prevents normal verification because another buyer is supposedly waiting, walk away.

Red flag 3: a receipt or code is treated as authentication

Receipts, boxes, dust bags, authenticity cards and codes can be copied, replaced or paired with the wrong item. They may support an item’s history, but they must be assessed alongside construction, material, hardware and model-specific details.

Red flag 4: authentication is vague

“Checked by our team” does not explain who checked the item, what evidence was reviewed or what happens if a concern emerges later. Look for a named independent authentication provider, a certificate linked to the item and a written authenticity guarantee.

At Lost Designer, every piece is assessed through LegitApp by two independent authenticators, with three authenticators for Hermès. A physical authenticity certificate is included, and purchases are backed by a lifetime authenticity guarantee. Learn more about our authentication process.

Red flag 5: the payment method offers no protection

Untraceable transfers, cryptocurrency demands and off-platform payments can leave a buyer with little recourse. Use the seller’s official checkout and retain the invoice, listing description, certificate and correspondence.

Red flag 6: the business cannot be verified

• Check the seller’s business identity and contact details.
• Read policies on authenticity and items that are materially not as described.
• Look for a consistent trading history rather than a newly created profile with copied content.
• Confirm that customer reviews relate to the seller—not merely to the brand being sold.
• Check that website security and checkout details match the business name.

What you can check without pretending to be an authenticator

You can still perform a sensible buying review. Confirm that model names and dimensions are plausible, compare the visible wear with the description, check that included accessories are listed, and search the image to see whether it was copied from another seller. These steps detect inconsistent listings; they do not replace professional authentication.

If you still have doubts

Do not let scarcity override uncertainty. Ask the seller for clarification before paying, use an independent authentication service where appropriate, and avoid an item if the evidence remains incomplete. A missed purchase is less costly than a counterfeit.

Check whether the images belong to the seller

Counterfeit and non-delivery scams often reuse photographs from legitimate stores, auctions or social accounts. A reverse-image search can reveal an identical photograph attached to a different seller, price or location. Also compare backgrounds, image dimensions and lighting across the listing. A mixture of professional product images and unrelated phone photographs deserves an explanation.

Account and website checks

• Confirm that the business name, website domain, email address and payment recipient are consistent.
• Search the business name with terms such as “reviews”, “scam” and “counterfeit”, while remembering that anonymous reviews also require judgment.
• Check how long a marketplace account has operated and whether its sales history relates to luxury goods.
• Read the authenticity guarantee before paying; a vague social-media promise is not enough.
• Verify that the checkout remains on the seller’s official domain or a recognised payment provider.

Common authentication myths

What to do when the bag arrives

Inspect the parcel promptly and retain packaging until you are satisfied. Confirm the model, colour, condition and inclusions against the saved listing. Check that the certificate refers to the item received. If there is a material inconsistency, stop using the bag, photograph the issue and contact the seller through the documented channel.

What professional authentication can and cannot do

Authentication assesses whether the item is consistent with genuine examples; it does not grade every condition issue, guarantee future resale value or prove that a marketplace seller will deliver. That is why authentication must sit alongside seller verification, secure payment and accurate condition reporting.

Frequently asked questions

Are “superfakes” impossible to authenticate?

No. The term is marketing language used to imply that a counterfeit is indistinguishable. Skilled authenticators examine combinations of construction, materials, hardware and model-specific details rather than one obvious feature.

Can a genuine bag have an incorrect accessory?

Yes. A genuine bag may be paired with a replacement dust bag, strap or box. Each component and the main item should be described accurately.

Is a marketplace authentication badge enough?

Understand exactly what the badge means, who performed the assessment and what protection applies after delivery. Processes vary between platforms.

What if the seller refuses more photographs?

If the missing evidence is important and the seller will not provide it, do not let urgency pressure you into the purchase.

Browse authenticated pre-owned designer bags or read the complete online buying guide.