Authentique's Authentication Process

Gemstone & Diamond Grading Standards

At Authentique Luxury, all mounted diamond and gemstone grading is performed in strict accordance with the standards set by the Gemological Institute of America (GIA)—the global authority in gemology.

In alignment with industry best practices, we do not remove stones from their original mountings, in order to preserve the integrity of the setting and craftsmanship. Grading is conducted in situ (within the mounting), using advanced non-invasive techniques.

Each piece is carefully evaluated and appraised by our certified gemologists, ensuring that every item meets our rigorous quality and authenticity standards while maintaining its original design and value.

Our clients can trust that every gemstone and diamond we offer has been examined with accuracy, care, and in accordance with the most respected standards in the industry.

Authentique Luxury’s Authenticity Guarantee and Commitment to you.

100% Authenticated. Founder Verified. Counterfeit-Free.

At Authentique Luxury, we believe trust is the true measure of luxury. That’s why we guarantee that every item we offer has been thoroughly authenticated by experts—and personally overseen by our founders.

We are proud to provide one of the most rigorous authentication standards in the global resale industry. Our goal is simple: to give our clients complete peace of mind every time they buy or consign with us.

What Sets Our Guarantee Apart

100% Expert-Authenticated

Every single item sold through Authentique Luxury is meticulously examined by trained specialists with backgrounds in brands such as Hermès, Tiffany & Co., Rolex, and leading auction houses like Christie’s and Sotheby’s. From designer handbags to fine jewelry and watches, no item is listed without passing our multi-point inspection process.

Founder Oversight
Our authentication standards are directly overseen by Founder & CEO Lizette Spurrier and President & CEO Mark Spurrier. Their active involvement ensures the highest level of precision, consistency, and accountability—something few resale companies can offer.

Advanced Detection Standards
We stay ahead of counterfeiting trends through evolving protocols that include:
  • High-resolution material and construction analysis
  • Brand-specific detail validation
  • Serial number and hallmark verification
  • Expert-led trend tracking and counterfeit detection updates

Zero Tolerance for Fakes

We are relentless in our pursuit of authenticity—not only to protect our clients, but to remove counterfeit goods from circulation entirely. Items that do not meet our standards are rejected immediately and never made available on our platform.

Our Client Commitment

Should a question ever arise, we act swiftly and decisively. If you’re not fully confident in your purchase, we will make it right—immediately. Your trust is not only our priority—it’s our foundation.
With Authentique Luxury, you're not just purchasing authenticated luxury—you’re investing in a platform where expertise meets integrity, and where every item tells a true story.
At Authentique Luxury, we maintain an uncompromising standard:
Every single item we offer is thoroughly authenticated before it ever reaches a client’s hands.
We have built one of the most rigorous authentication systems in the global luxury resale industry—designed not only to detect counterfeits, but to actively combat the counterfeit market at large. Our mission is to create a secure, transparent marketplace where our clients and consignors can shop and sell with total confidence.

Key Differentiators That Set Us Apart:
  • 100% of items are authenticated. We are one of the few luxury resale companies in the world that authenticates every product before sale—no exceptions.
  • Oversight by Ownership. Unlike other platforms, our authentication process is directly overseen by Founder & CEO Lizette Spurrier and President & CEO Mark Spurrier. Their involvement ensures not only precision and accountability, but also a deeply personal commitment to excellence and integrity.
  • Industry-Leading Expertise. Our authentication team includes seasoned professionals from elite luxury brands and global auction houses. From gemologists and horologists to fashion historians, they bring deep expertise to every product review.
  • Dynamic and Evolving Systems. Our internal processes are continually evolving to keep pace with the sophistication of counterfeiters. We invest in advanced authentication techniques, including high-resolution analysis, material forensics, and proprietary detection protocols informed by data and expert review.
  • Client Protection & Peace of Mind. We stand firmly behind every item we sell. If a client ever has a concern about a product, our dedicated team will make it right—immediately and without hesitation.
At Authentique Luxury, we’re not just verifying authenticity—we’re building trust, protecting our clients, and leading the way toward a cleaner, safer, and more responsible future for luxury resale.

Client Testimonials

What Our Clients Say
“I consigned a Cartier watch and was blown away by how thorough and professional the process was. Knowing Lizette and Mark are personally involved gave me total peace of mind.”
— Isabella M., Beverly Hills, CA
“You can feel the difference with Authentique. From the white-glove pickup to the authentication report, it’s the first time I’ve ever felt luxury in luxury resale.”
— Daniel K., NYC

Shipping & Delivery

We offer worldwide shipping with real-time tracking updates. Estimated delivery times and shipping rates are displayed at checkout. For more details, visit our Shipping Policy page.

Returns & Exchanges

Not in love with your order? No worries. Initiate a return or exchange by visiting our Returns Center. Please note, final sale and custom items cannot be returned.

Authenticity Guarantee

At Authentique, we pride ourselves on offering 100% authentic luxury items. Every product is thoroughly inspected by our team of experts before reaching your hands.