The Signet Sourcing Protocol — Volume Retail's Responsible-Sourcing Framework
The Signet Sourcing Protocol — Volume Retail's Responsible-Sourcing Framework
How the largest specialty jeweller's protocol intersects with KPCS, RJC, and OECD due diligence
The Signet Sourcing Protocol is the responsible-sourcing framework operated by Signet Jewelers, the parent of Kay Jewelers, Zales, Jared, James Allen, H. Samuel, Ernest Jones and the wider Signet retail group. The Protocol governs the company's expectations on how diamonds, gold, and the principal coloured gemstones are sourced through its supply chain, and it incorporates the requirements of the Kimberley Process Certification Scheme, the Responsible Jewellery Council Code of Practices, and the OECD Due Diligence Guidance for Responsible Supply Chains of Minerals from Conflict-Affected and High-Risk Areas. Because Signet is the largest single specialty jewellery counterparty in the United States and United Kingdom retail markets, the Protocol's reach extends well beyond the company's direct supplier base into the broader supply chain that services it.
Origin
The Protocol emerged in the early 2000s as Signet — then Sterling Inc. and the parent of Kay Jewelers and Jared — formalised supplier compliance commitments in the wake of the conflict-diamond crisis and the establishment of the Kimberley Process. Initial expectations covered diamond sourcing under the Kimberley Process and the World Diamond Council System of Warranties. Successive revisions extended the framework to gold, coloured gemstones, and to broader human-rights and environmental considerations. The Protocol is now published as the company's Responsible Sourcing Protocol, with public-facing reporting through Signet's annual Corporate Sustainability Report.
Structure and scope
The Protocol applies to suppliers of diamonds, gold, silver, platinum, and the major commercial coloured gemstones in the Signet supply chain, and it cascades through suppliers' own subcontracted relationships. The framework is structured around four principal areas: chain-of-custody documentation, supplier compliance with international standards, on-site auditing, and remediation. Suppliers are required to provide written assurance that goods are sourced in conformity with the Protocol, to maintain records sufficient to support the assurance, and to submit to audit on the terms set by Signet's Responsible Sourcing function.
Diamond requirements
Diamonds entering the Signet supply chain must be Kimberley Process certified at the rough stage and accompanied by World Diamond Council System of Warranties statements at successive transactions through to the polished delivery. Suppliers are required to demonstrate that they do not source from regions or operators that present specific Protocol-flagged risks. The Protocol historically aligned with the Patriot Act anti-money-laundering expectations on diamond dealers, and Signet's compliance programme integrates the two regimes for diamond suppliers.
Gold requirements
Gold sourcing under the Protocol references the OECD Due Diligence Guidance, the LBMA Responsible Gold Guidance, and the RJC Chain-of-Custody standard for gold. Recycled gold is documented through chain-of-custody records that allow segregation from primary mined gold where required for product line claims. Mine-of-origin sourcing for primary gold is concentrated through suppliers operating to the LBMA Responsibly Sourced Gold standard, and Signet has at various points reported on the proportion of gold flowing through certified channels.
Coloured gemstone requirements
Coloured gemstone sourcing is a more recent and continuing development under the Protocol, reflecting the structural difficulty of building chain-of-custody records for material that has historically moved through artisanal mining and decentralised cutting and polishing. The Protocol references the AGTA Code of Ethical Principles, the ICA Sourcing Guidelines, and the broader OECD framework, and Signet has participated in industry working groups on coloured-gemstone traceability, including the GemFair pilot work in Sierra Leone.
Audit and assurance
Audits under the Protocol are conducted by independent third-party auditors on a multi-year cycle, with frequency keyed to risk profile and supply volume. Findings are categorised by severity, and remediation plans are negotiated with the supplier under defined timelines. Repeated or unresolved material findings carry the contractual consequence of removal from the approved supplier list. The audit programme is integrated with the Responsible Jewellery Council's certification audits where the supplier is RJC-certified, reducing duplication.
Public reporting
Signet publishes an annual Corporate Sustainability Report that includes Protocol-related disclosures on supplier compliance status, audit completion rates, and progress against the company's stated responsible-sourcing targets. The disclosures are not externally verified to a financial-audit standard but are aligned with the GRI sustainability reporting framework and, in respect of conflict minerals, with the Dodd-Frank Section 1502 requirements for tantalum, tin, tungsten, and gold.
Position in the trade
The Signet Sourcing Protocol is one of three or four reference compliance frameworks in the global jewellery trade, alongside the Tiffany & Co. supply-chain protocol, the Richemont group sourcing standards, and the Responsible Jewellery Council Code of Practices itself. For suppliers serving the volume retail trade, Signet's expectations operate as a near-floor compliance baseline. For independent retailers and dealers outside the Signet supply chain, the Protocol is nevertheless useful as a published reference for what large-buyer compliance looks like, and the audit findings disclosed in Signet's reporting provide visibility into systemic supply-chain conditions that no individual dealer could survey alone.
Critique
The Protocol has drawn the same general critique that attaches to industry-led responsible-sourcing frameworks, namely that supplier-self-attestation is the foundational layer and that genuine third-party verification is concentrated on a subset of higher-risk relationships rather than applied uniformly. Civil-society commentators including Human Rights Watch have published analyses of the gap between published frameworks and on-the-ground practice in artisanal mining communities, and Signet has acknowledged the continuing development trajectory of the Protocol in its public reporting.
In the trade
For practitioners working with Signet supply, the Protocol is a contractual document and the primary determinant of supplier eligibility. For practitioners outside that supply chain, it is a useful indicator of where volume-retail expectations are heading. The trend over the period from the early 2000s to the present has been one of widening scope (from diamonds to gold to coloured stones), increased external referencing (to OECD, LBMA, RJC, and AGTA frameworks), and gradual expansion of audit coverage. The Protocol is not a silver-bullet solution to supply-chain due diligence, but it is one of the more substantial volume-retail commitments in the trade and it shapes the supply-side context within which independent buyers operate.