November 15, 2025
October 22, 2026
Author: João Lages
Diamonds are not a homogeneous commodity. Two stones with the same weight can have materially different value because of cut, colour, clarity, fluorescence, origin, treatment and marketability. That makes diamond tokenization less like digitising gold bars and more like building a controlled registry for unique assets.
The central question is whether a token represents one identified stone, a share in a managed collection, or merely a financial return linked to diamond values. If the issuer cannot answer that question precisely, it cannot design reliable custody, valuation or investor rights.
An item-level token can map one token or a fixed set of fractions to one identified diamond. The legal documents, grading report, high-resolution record, tamper-evident packaging and vault entry must all refer to the same stone. Substitution should be prohibited unless holders approve or the terms contain a narrow replacement process after loss or damage.
A pool token represents an interest in multiple diamonds. It reduces the impact of one stone and makes subscriptions easier, but it turns selection and disposal into active management. Investors depend on valuation policies, eligibility criteria and conflicts controls. If capital is pooled and managed under a defined investment policy for investors' benefit, the structure may also raise alternative investment fund questions, independently of whether the interests are tokenized.
A diamond-linked note creates a contractual payoff. It may be secured by stones, but the investor normally owns the note rather than the diamonds. That distinction must remain visible throughout the investor journey.
A grading report is evidence, not title. The product needs a chain connecting the report to the physical stone and the stone to the holder's legal right. A robust identity package includes:
Laser inscriptions and imaging can help, but controls should anticipate recutting, damaged inscriptions and certificate substitution. Independent inspection on deposit and withdrawal is more persuasive than relying on a seller-supplied PDF.
For rough diamonds, EU imports and exports are governed by Council Regulation (EC) No 2368/2002, which implements the Kimberley Process Certification Scheme. The European Commission's trade guidance explains the EU certification and control system. The Regulation applies to defined categories of rough diamonds and includes recordkeeping and control requirements.
A Kimberley Process certificate should not be marketed as a complete ethical or quality guarantee. It addresses the international trade controls for rough diamonds. It does not grade a polished stone, establish legal title for an investor, resolve sanctions exposure, or prove every ESG claim in a downstream supply chain. The issuer needs separate sanctions screening, supplier due diligence and evidence supporting any broader provenance statement.
Diamonds lack the simple fungible benchmark used for exchange-traded metals. Model prices, dealer lists and auction results may differ from executable net proceeds. Valuation policy is therefore part of the product, not a back-office detail.
An investable pool should define who values the stones, how often, which observable transactions or methodologies are used, how stale prices are treated, and whether acquisition and disposal costs are included. The party selecting diamonds should not unilaterally set the price paid by investors without an independent check.
Consider a pool that reports an appraisal value of EUR 10 million but could realise only EUR 7 million in an orderly dealer sale after commissions. If subscriptions and fees use the higher figure while redemptions use actual proceeds, dilution and conflicts arise. A conservative policy should distinguish retail replacement value, wholesale market value and expected liquidation value.
The vault agreement should acknowledge the ownership or security structure, prohibit unauthorised liens and specify the documents needed for release. Insurance must cover the relevant risks and name the appropriate insured or loss payee. A generic statement that stones are “fully insured” is inadequate if the policy excludes mysterious disappearance, employee dishonesty, transit or valuation disputes.
Item-level reconciliation should match every eligible stone to one legal record and its outstanding tokens. For fractional ownership, the system must prevent token issuance above 100% of the available interest. For pooled products, additions and removals should be visible in a controlled asset schedule with independent approval.
Redemption is also asset-specific. Delivering one unique stone to one fractional holder leaves the other holders with cash or a replacement asset. The terms therefore need a sale-and-distribution mechanism, a buyout process, periodic liquidity windows, or whole-stone redemption after consolidation of all fractions.
Tokenization does not decide the legal classification. A unique token that transfers direct title may fall outside MiFID II, subject to national property and commercial law. Standardised interests in a pool, secured notes or freely transferable investment claims can be financial instruments. ESMA directs authorities to use a technology-neutral and substance-based approach in its crypto-asset classification guidelines.
If the interests qualify as financial instruments, MiCA is excluded. The issuer must instead consider corporate issuance rules, MiFID II placement and distribution, the Prospectus Regulation, PRIIPs for packaged retail exposure, and market-abuse rules where relevant. A pooled and managed collection may need AIFMD analysis even if each stone is separately identified.
Since 5 June 2026, a public offer below EUR 12 million over 12 months is generally exempt from the EU prospectus requirement, but Member States may set the threshold at EUR 5 million and can impose national disclosures. This is an exemption from a full prospectus, not an exemption from classification, fair marketing or distributor obligations.
The EU Securitisation Regulation should not be assumed to apply because diamonds “back” a security. It requires tranched credit risk on an exposure or pool of exposures. Most single-class diamond notes are better analysed as secured securities or participation instruments.
First, fungibility: if stones are marketed as interchangeable, the eligibility and valuation rules must make that claim credible. Otherwise use item-level tokens.
Second, management discretion: if a manager selects, trades and reinvests the collection, analyse fund regulation and conflicts. If the product promises passive ownership, restrict discretion accordingly.
Third, exit mechanics: decide whether investors can receive a stone, sell tokens, participate in periodic auctions, or redeem only after an asset sale. Do not promise “liquidity” without an executable route.
A defensible item-level product links each stone to verified grading, provenance, custody and title evidence, limits token supply to the legal interest, and establishes a workable sale or delivery process. A defensible pool adds independent valuation, eligibility rules, asset schedules, conflicts controls and fund-perimeter analysis.
Lympid's physical-asset tokenization infrastructure can support controlled issuance and investor access after those asset and legal records are designed. The broader explanation of what a real-world-asset token actually represents is relevant to the title question, while the guide to European legal tokenization structures maps the issuer and offering route.
For diamonds, the digital token is the final link in the evidence chain. The product becomes credible only when a disputed stone can be identified, valued, controlled and delivered without relying on the blockchain to answer questions it cannot resolve.
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