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1. The Koh-i-Noor, cost $1+ billion
2. The Cullinan I, cost $400 million
3. The Hope Diamond, cost $200+ million
4. The Centenary Diamond, cost $100 million
5. The Pink Star, cost $71.2 million
6. The Oppenheimer Blue Diamond, cost $57.5 million
7. The Wittelsbach Diamond, cost $23.4 million
8. The Perfect Pink, cost $23 million
9. The Moussaieff Red Diamond, cost $20 million
10. The Heart of Eternity, cost $16 million