A striking colored-diamond ring is the star ... The 5.7-carat fancy intense blue diamond ring leads the auction house’s Magnificent Jewels auction with an estimate of $6 million to $8 million.

A pink diamond of “unparalleled color and brightness” sold for $34.8 million in New York on ... Tai Fook and renamed “CTF Pink Star.” A 11.15-carat pink diamond dubbed “Williamson ...

That diamond was 15.8 carats. Another 14.8-carat, purple-pink diamond sold in 2020 for $26.6 million, according to the BBC.