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Sparkling loose diamonds in various cuts, showcasing brilliance and clarity against a white background.

The Diamstar Blockchain Certificate

Alongside its official gemological certificate, every Diamstar diamond comes with an exclusive digital certificate: a unique, tamper-proof NFT secured on the blockchain. A modern, reliable and lasting proof of authenticity.

Brilliant cut diamond with rainbow light reflections, showcasing natural sparkle and precision facets

What is an NFT certificate?

At Diamstar, we have chosen to pair each diamond with a digital certificate in the form of an NFT, issued on the Ethereum blockchain—a technology renowned for its security and reliability.

An NFT (Non-Fungible Token) is a unique, tamper-proof, and immutable digital file recorded on a blockchain. Unlike a paper document, it cannot be lost, forged, or duplicated.

In practical terms, this means your diamond is linked to a secure digital certificate containing its key characteristics (weight, color, clarity, gemological certificate number, date of purchase, etc.), along with an official Diamstar signature.

This certificate serves as the exclusive digital proof of authenticity for your stone, belonging solely to you. It stays with you—or your heirs—without any risk of loss or alteration.

This represents a new way to guarantee the value and origin of your diamond with full transparency, using the most advanced technology available today.

KEY BENEFITS OF THE DIAMSTAR CERTIFICATE

  • Heavy-duty bank vault door with secure locking mechanism, symbolizing safe storage for valuable diamonds and jewelry.

    Blockchain security

    The NFT certificate is recorded on the Ethereum blockchain, making it tamper-proof, permanent, and impossible to alter. It ensures the authenticity of your diamond is protected forever.

  • MacBook Pro laptop beside glass vase with green leaf on white desk

    Transparency and accessibility

    This digital certificate is accessible anytime, anywhere, and from any device. You can easily view, share, or verify it with just one click.

  • Global network connecting cities at night, symbolizing worldwide delivery and connectivity.

    Certified traceability

    It contains all the key information about your diamond and allows you to transparently track its history. In case of resale or transfer, ownership transfer is simple and instantaneous.

  • Digital globe with green energy icons, wind turbines, solar, and recycling symbols over Earth, representing sustainable global tech.

    Sustainable innovation

    It enables paperless dematerialization, which is more environmentally friendly, while embracing an innovative technological approach.

HOW TO GET YOUR CERTIFICATE

This optional service is offered with every diamond purchase. To receive your unique blockchain digital certificate, you can choose between two simple and accessible options:

Option 1 - You already have a wallet

If you already have a crypto wallet such as MetaMask, Ledger, or others, simply provide your public Ethereum address when validating your cart, in the "add order note" section, or by sending it to us via email at info@diamstar.co.

After the 14-day legal withdrawal period, the NFT certificate for your diamond will be securely sent directly to your wallet. It belongs entirely to you and can be viewed or transferred at any time.

Option 2 - You don't have a wallet

This is no problem. Once the legal 14-day withdrawal period has expired, you will receive a secure email link to your certificate hosted on a reliable and safe platform, OpenSea.

You will then be able to view it freely, and if you later decide to create a wallet, we can assist you at any time in transferring it to your name.

A precious diamond. A unique certificate. A guarantee of total security.

  • Free delivery

    France, EU, international

  • Dual certification

    Laboratory and blockchain

  • Secure transportation

    Guarantees and insurance

  • Human support

    Expertise and assistance 7/7