Four Collection

Development of a blockchain-based platform allowing users to buy, trade, and redeem physical diamonds via NFTs, with easy access from any device.
E-commerce
Web3
Medium Business

Client

4Collection GmbH

Date

Since December 2022

Role

Software development

Thomas Hellweg, Co-Founder 4Collection GmbH

milbo has delivered a world-class solution where investors can securely buy and redeem diamond NFTs. Their ability to translate complex blockchain concepts into intuitive, user-friendly experiences has been key to Four Collection’s success. Working with milbo means working with a team that combines deep technical expertise, sharp strategic thinking, and a true dedication to innovation. We could not imagine a better partner on this journey.

25+

Smart contract deployments

2+

Years of collaboration

1

Industries revolutionized

Reshaping diamond trade together

About Four Collection GmbH

‍Four Collection GmbH is a Munich-based fintech startup dedicated to revolutionizing diamond investment through blockchain technology. As one of the few web3 projects in Germany to be developed in strict alignment with local regulations, Four Collection brings transparency and accessibility to high-value asset ownership. By tokenizing physical diamonds on the blockchain, the company aims to make diamond investments globally accessible and easily tradable, marking a significant step forward in the digitalization of real-world assets.

‍History of the Partnership with milbo GmbH

‍The partnership between Four Collection and milbo began at the project’s inception, with a rough vision and scope in place. milbo played a pivotal role from the start, overseeing the planning, preparation, and development of Four Collection’s IT infrastructure. Drawing on expertise in blockchain and web3 technology, milbo built the design of the entire user flow, UI/UX experience, and technical architecture to bring Four Collection’s vision to life and turning the initial concept into a fully operational platform.

A seamless, user-friendly system that allows clients to buy, trade, and redeem tokenized diamonds securely. The ongoing collaboration has positioned Four Collection as a leader in compliant, secure, and accessible asset tokenization.

Introduction of the custom solution

Challenge


‍Lack of transparency and accessibility in traditional diamond investment.

‍Solution

‍Development of a blockchain-based platform allowing users to buy, trade, and redeem physical diamonds via NFTs, with easy access from any device.‍

Key Features‍

  • NFT minting upon purchase, fully automated wallet setup, and direct asset transfer.
  • User-centric checkout experience with Coinbase Commerce integration.
  • Diamond portfolios and multiple minting functionalities in future development.

‍Development Process‍

  1. Phase: Conceptualization of NFT structure and tokenization process, ensuring successful, individual minting.
  2. Phase: Smart contract development and extensive testing to guarantee operational security.
  3. Phase: Platform and internal system build-out, aligning with Four Collection's strategic goals.
  4. Phase: Wallet integration using Privy for improved user accessibility and security.

‍

Shaping the future of tomorrow already today

How the Solution Works

‍Four Collection’s platform provides a smooth, intuitive experience, guiding users through the process of purchasing, trading, and redeeming tokenized diamonds. This solution not only brings transparency and traceability to diamond investment but also offers unprecedented accessibility, allowing users to participate in high-value asset ownership from their phones or laptops with ease and confidence.

01

Tokenization & Embedded Wallet Creation

When a user purchases a diamond, Four Collection immediately initiates the tokenization process. Through a smart contract developed by Milbo, a unique NFT representing the diamond is minted directly on the blockchain. The system is designed to feel like a typical e-commerce checkout, integrating with Coinbase Commerce for simple, secure payment handling. Upon purchase, an embedded wallet is automatically created for the user with their email address, streamlining the onboarding process and eliminating the need for complex wallet setups. The minted NFT is stored in this wallet, ensuring secure, immediate ownership.

02

Digital Trading

With the NFT in their wallet, users can freely trade the tokenized diamond on leading web3 marketplaces. For enhanced security, the platform restricts transfers to compatible wallet addresses, preventing potential errors and safeguarding user assets.

03

Redeeming Physical Diamonds


If a user wishes to redeem the physical diamond, they can seamlessly initiate the process on the platform. Upon burning the NFT, the corresponding diamond is released from secure storage in Four Collection’s warehouse and shipped directly to the owner, completing the investment journey from digital asset to tangible, real-world possession.

An outlook into a bright future

The vision is a sophisticated yet user-friendly platform that enables Four Collection’s clients to buy, trade, and redeem tokenized diamonds with ease. ilbo continues to support Four Collection, ensuring the platform’s infrastructure is robust and ready for future expansion.‍

‍Results and Current Status‍

  • BETA Testing: Platform in controlled release for initial user feedback and optimization.
  • User Experience: Exceptional ease of use with wallet creation and transfer security, restricting incompatible wallet addresses for added protection.
  • Client Testimonial: “[milbo] brought our vision to life with unparalleled precision and expertise…” - Torsten Graf, CEO, Four Collection.

‍Future Development Goals‍

  • Adding bulk minting capabilities, expanding diamond types, and providing diamond investment portfolios.
  • Advanced ERP/CRM integrations for business operations.
  • Prepared for regulatory adaptations to ensure ongoing compliance.

Showcase

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