The global coloured gemstone market is projected to reach USD 6.2 billion by 2036, expanding from USD 1.9 billion in 2025 to an estimated USD 2.1 billion in 2026, according to Future Market Insights (FMI). The market is forecast to grow at a compound annual growth rate (CAGR) of 11.3% from 2026 to 2036, supported by demand for coloured gemstone jewellery, traceable mine-to-market supply, and...