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Saint Laurent (YSL) Authentication Service
A second opinion you can show a buyer. Your Saint Laurent or vintage YSL bag, wallet or shoes is reviewed personally by Boaz and returned with a digital Certificate of Authenticity within 24 hours.
- 4.5/5 on Trustpilot · 1000s of Saint Laurent items authenticated (opens in a new tab)
- Verdict within 24 hours
- 1Brand
- 2Item type
- 3Photos
“Saved me a lot of money when buying an expensive purse that turned out to be fraudulent.”
Your verdict, on a certificate anyone can check
A clear verdict from Boaz, with the reasons written out
Your own photos as evidence: stamps, stitching, hardware
A unique code and QR, so buyers and marketplaces can verify it
Scan the QR on it to test the verification yourself.
Legitique operates independently and is not affiliated with any brand it authenticates.
How it works
Three steps from photos to proof. Every verdict is made by Boaz, not by software.
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Step 1
Upload your photos
Pick your brand and item type, then upload clear photos of labels, stamps, hardware and stitching.
Which photos do I need? -
Step 2
Boaz reviews every detail
He checks fonts, materials, construction, codes and the brand-specific tells that replicas get wrong. If something is unclear, he asks for more photos.
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Step 3
Get your verdict and certificate
Within 24 hours: authentic, not authentic or inconclusive, with the reasons why, plus a PDF certificate you can share.
See a sample certificate
What We Authenticate For Yves Saint Laurent
Can't find your product model? No worries, we authenticate everything that Balenciaga has ever made and you can always submit it for review.
HANDBAGS
CLOTHING
SHOES
Saint Laurent authentication process and serial number check
- Step 1
Interior tag & stamp:
- Step 2
Serial number verification:
- Step 3
YSL logo & overlaps:
- Step 4
Hardware, lining & stitching:
Featured Questions
Buying secondhand shouldn't feel like a gamble. Here's what our authenticators get asked most.
Clothing, Accessories, Shoes €35,95 · Bags, Other items €44,95
The written verdict and the PDF certificate are included, with no extra fees. There's no paid rush option: every order gets the same fast review.
Within 24 hours of uploading clear photos, in most cases. If Boaz needs another photo, he asks straight away, so you're never left waiting without a reply.
Every Saint Laurent item: clothing, bags, accessories and shoes, including vintage and rare pieces. Choose the category when you order. If your item doesn't fit one, choose "Other" and Boaz will take a look.
No. Counterfeiters copy genuine Saint Laurent serial numbers, so a serial number that looks right only tells you the format fits. Boaz checks it against the item in your photos and against the stamps, stitching, hardware and materials.
You can check the serial number yourself for free with the Saint Laurent serial number checker.
Usually 8–12 photos taken with your phone in daylight: the full item front and back, the inside or labels, the brand stamp, any serial or date code, and close-ups of hardware and stitching.
The photo guide shows exactly what to take for bags, clothing, shoes and accessories.
If it's not authentic, you get a written verdict with the specific reasons, which many clients use as evidence with the seller, the marketplace or PayPal. Each platform makes its own decision, so we can't promise an outcome.
If the result is inconclusive, Boaz first asks for more photos. If it stays inconclusive, he explains why and refunds your order in full.
No. Every Saint Laurent verdict is made by Boaz, a human authenticator, not by an app or AI scanner. That's why each verdict comes with the reasons behind it.
No. Legitique is an independent authentication service and isn't affiliated with Saint Laurent. The certificate is an expert opinion that anyone can verify at certificate.legitique.com with its unique code.
Where Can I Get My Yves Saint Laurent Authenticated?
Legitique. Send a few photos, hear back from a real authenticator within 24 hours. No AI, no guesswork, no shipping required.
Boutique staff aren't trained or authorized to confirm authenticity, even to help with a repair. If you need a real answer before you buy, sell, or resell, a store visit won't get you one. You need an independent expert who does this every day.
Big platforms check thousands of bags a day, often in seconds, and YSL is among the most frequently counterfeited designer brands, with fakes convincing enough to pass a quick platform check. If you're about to spend real money, a second opinion from someone who specializes in YSL protects your purchase, and your resale value down the line.
Your bag is reviewed by a Legitique authenticator who has personally handled thousands of YSL pieces; not software, not a bot. You get a straight answer you can actually rely on when you're buying, selling, insuring, or reselling.
No shipping, no waiting weeks. Upload clear photos of the hardware, leather, and interior tag, and a human expert sends you a clear yes-or-no verdict within 24 hours, so you can buy or sell with confidence, fast.
Latest Authentication & Legit Check Guides
Human-expert guides to help you spot fakes and verify key designer pieces before you buy or sell, written and reviewed by Boaz Kwak, Head of Authentication & Founder of Legitique.
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Real collectors. Real decisions.
What people say after checking an item with Legitique before they buy, sell or dispute.
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Saved me a lot of money when buying an expensive purse that turned out to be fraudulent.
Jennifer Baker Buyer · Designer handbag -
★★★★★
Very professional legit check
Very professional legit check service. I used them to authenticate a Hermès item and the response was fast and detailed. They clearly know what to look for with luxury brands like Hermès, Chanel and Louis Vuitton.
Paul Collins Buyer · Hermès -
★★★★★
Great from start to finish
I sent in photos of my Chanel bag for authentication and got a clear answer with useful details. It felt reliable and trustworthy, especially when buying expensive designer items online.
Jason Gibson Buyer · Chanel bag -
★★★★★
Really happy with the service
I needed a legit check for a Louis Vuitton bag and the process was quick, clear and professional. The report gave me peace of mind before buying and everything was explained in a simple way.
Michael Johnson Buyer · Louis Vuitton bag -
★★★★★
Perfect Louis Vuitton authentication
Perfect Louis Vuitton Authentication, fast result. Would definitely do my next authentication here too! Certificate was clear and helpful.
Tadjana vdL Collector · Louis Vuitton -
★★★★★
Fast, clear and detailed
What stood out to me the most was the fast response time and the detailed explanation in the report. Everything was well supported, which gave me confidence that the authentication was carried out carefully.
Teis Doekes Collector