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Top 5 most expensive diamonds
1. Witterlasbach-Graff blue diamond
The price is $80 million
2. Pink Star pink diamond
The price is $71.2 million
3. Oppenheimer Blue diamond
The price is $57.5 million
4. Blue moon of Josephine blue diamond
The price is $48.4 million
5. Graff Pink diamond
The price is $46.2 million