As of 1 January 2026, French jewellers will have to contend with a new raft of regulations concerning Russian diamonds. A fresh round of European sanctions in response to the invasion of Ukraine will come into force that will entail stricter traceability checks - every rough diamond imported into Europe will require an accompanying certificate stating the country where the stone was extracted. This latest complication will have been preying on the mind of Bernadette Pinet-Cuoq, who for the last 20