Our Authenticity Guarantee

At Nielsen, every single item undergoes a rigorous multi-point authentication process before it is listed for sale. We stand behind every piece we sell.

Our Authentication Process

Our team of luxury specialists inspect each item for:

• Materials & Craftsmanship — Hardware quality, stitching, leather grain, and finishing details.
• Hardware & Engravings — Date codes, serial numbers, and maker marks specific to each house.
• Provenance — Original purchase receipts, dust bags, and original packaging wherever available.
• Brand-Specific Markers — Heat stamps, alignment, lining, and other house-specific authentication criteria.

Brands We Authenticate

We specialize in authenticating pieces from Hermes, Chanel, Louis Vuitton, Celine, Dior, Gucci, Balenciaga, Saint Laurent, Rolex, Van Cleef and Arpels, and many more.

Our Guarantee

If for any reason an item you purchase from Nielsen is proven inauthentic, we will issue a full refund — no questions asked. Your confidence is our commitment.