Graff Diamonds Automates Customs Declarations and OPR with TMS

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TMS

Graff Diamonds Automates Customs Declarations and OPR with TMS

Case study showing how Graff Diamonds replaced spreadsheets with Descartes TMS to automate OPR and customs warehouse processes, improve visibility, and reduce duty spend.

Published

June 4, 2026

Read time

3 min read

Source

Graff Diamonds sources rough stones globally and manages complex import, export, and outward processing relief (OPR) flows through its UK customs warehouse. The company replaced manual spreadsheets with Descartes Electronic Import Customs Solution to itemize gems, integrate OPR and warehouse modules, and maintain full audit trails. Automation delivered item-level visibility, ensured re-imports stayed within duty relief time limits, and reduced unnecessary duty and VAT payments.

Key takeaways

Automated OPR and customs warehouse integration replaced spreadsheet tracking for gem inventory

Item-level visibility and documentation enabled accurate duty relief claims on re-imported jewellery

Two-year OPR time limits are now tracked automatically to avoid full duty exposure

Audit trails and management reporting support customs compliance requirements

Reduced duty spend and improved landed cost accuracy for high-value shipments

Market overview

SCR methodology note

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Leaders

Implementation considerations

Important consideration

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