Every transaction follows Sierra Leone's lawful chain — licensed, assayed, valued, sealed and certified before government officers.
Sierra Leone's mineral sector has long attracted informal intermediaries and outright fraud. We protect buyers by operating only inside the legal framework set by the Mines and Minerals Development Act, 2022 — the statute that repealed and replaced the 2009 Act on 12 May 2023 — administered by the National Minerals Agency. Every step below cites the responsible authority, and every one of them can be verified without our help.
We operate as a registered dealer and exporter licensed under the Mines and Minerals Development Act, 2022 (No. 16 of 2022) — the statute that repealed and replaced the 2009 Act on 12 May 2023. Licensing is verifiable directly with the NMA and non-negotiable.
We give the Precious Minerals Trading Directorate the required 24-hour notice to prepare for valuation and export documentation, presenting goods per Schedule B.
Gold is assayed in the presence of the exporter, a Senior Mines Monitoring Officer and a National Revenue Authority customs officer, then re-weighed before sealing.
Diamonds are valued by three parties — the exporter, the Government Diamond Valuer and an independent valuer. The highest valuation determines duty.
Every rough shipment is sealed and issued a serial-numbered Kimberley certificate, confirming conflict-free origin under the scheme in which Sierra Leone is a full participant.
Statutory duty is paid, the parcel is sealed before a Customs Officer and the Government Mines Monitor, and the certificate is issued for lawful departure.
Licensing can be confirmed directly with the authorities. We encourage every serious buyer to do exactly that before any transaction — with us or with anyone else. It is the single most important safeguard in a Sierra Leone gold or diamond deal.
National Minerals Agency — licensing and oversight under the Mines and Minerals Development Act 2022. Contact: info@nma.gov.sl
Precious Minerals Trading Directorate and Government Gold & Diamond Office — assay, valuation and certification.
The UN-backed scheme in which Sierra Leone is a full participant — conflict-free rough certification.
Gold and diamond export compliance in Sierra Leone is governed by the Mines and Minerals Development Act 2022 (No. 16 of 2022), in force since 12 May 2023, which repealed and replaced the older Mines and Minerals Act 2009. A compliant purchase passes through a defined chain of authorities — and the certificates issued at each step are what make your gold or diamonds exportable and verifiable anywhere in the world.
Four bodies matter. The National Minerals Agency (NMA) licenses and registers dealers and exporters. The Precious Minerals Trading Directorate (PMT) and Government Gold & Diamond Office (GGDO) conduct assay, valuation and export clearance. The National Revenue Authority collects export duty and seals the parcel. The Kimberley Process Certification Scheme issues the serial-numbered certificate that confirms rough diamonds are conflict-free. Nova Parameter operates within every one of these frameworks.
Each government-witnessed step produces a document the buyer can verify independently — an assay certificate, a valuation, a duty receipt, a Kimberley or PMT/GGDO certificate. That paper trail is precisely what a fraudulent intermediary cannot produce. The fastest way to spot a risky Sierra Leone gold or diamond deal is simple: ask which authority issued the certificate, and for its serial number. A licensed exporter answers instantly.
Many gold websites targeting Sierra Leone still cite the repealed Mines and Minerals Act 2009. It was replaced over three years ago. A seller quoting the wrong statute is working from copied material rather than lived compliance — a fast, free way to sort the serious from the copy-paste.
Buying bullion, sourcing rough, or arranging lawful export — our desk in Bo answers every serious enquiry within one business day.