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Diamond Report Series

The Natural Diamond Council’s report series explores the trends, origins, and defining characteristics of the diamond world. Developed in collaboration with governments, communities, and industry experts, each report delivers transparent insights and engaging facts for consumers, media, and trade professionals alike.

Report • February 9, 2026
Report • December 15, 2025
Report • July 2, 2025
Report • June 4, 2025
Report • February 5, 2025
Report • November 8, 2024
Report • March 17, 2025
Report • September 25, 2024

Selected Highlights

More Charts

1.5 Carat Laboratory-Grown Diamond Value Has Decreased by 83% in the Past 9 Years

2025 Diamond Jewelry Trends: Rings Lead (39%), Earrings Follow (20%)

Natural Diamond Council (NDC) is a not-for-profit organization dedicated to promoting and protecting the integrity of the natural diamond industry worldwide. NDC serves as the authoritative voice for natural diamonds, inspiring and educating consumers on their real, rare and responsible values.
© 2026 — Natural Diamond Council

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