Treatments & disclosure
Lab-grown diamonds: what you must call them, country by country (2026)
The words you may and may not use for laboratory-grown diamonds in the US, UK, EU, France, Belgium, India, Russia and China, with the 2025 and 2026 changes: India's new standard, Russia's "synthetic" rule, GIA's new reports and CIBJO's vote.
9 Oct 2026