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CTF Pink Star Diamond Fetches Record $71.2 Million

12/12/2025

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Summary

Story summary

CTF Pink Star Diamond sold for $71.2 million at a 2017 Hong Kong auction, making it most expensive diamond ever auctioned.
The 59.60-carat gem, discovered by De Beers in Africa in 1999, required two years to cut and polish.
The Argyle mine closed in 2020, reducing pink-diamond supply to about 0.1% of output.
Other pink diamonds, such as the Williamson Pink Star and the Princie Diamond, have fetched high prices.

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Story summary

CTF Pink Star Diamond sold for $71.2 million at a 2017 Hong Kong auction, making it most expensive diamond ever auctioned.
The 59.60-carat gem, discovered by De Beers in Africa in 1999, required two years to cut and polish.
The Argyle mine closed in 2020, reducing pink-diamond supply to about 0.1% of output.
Other pink diamonds, such as the Williamson Pink Star and the Princie Diamond, have fetched high prices.