5 carat Blue Diamond with $10m US Estimate

A stunning platinum ring featuring a 5.02 carat blue diamond is set to headline Christie’s Hong Kong auction later this month, with an estimated value of up to US $10.3 million (HKD 80 million).

The centerpiece is an internally flawless, fancy deep blue marquise brilliant-cut diamond, graded by the Gemological Institute of America (GIA).

Dating back to 1923, the ring is listed in the auction catalog as “property of a lady,” though further details about the owner remain undisclosed.

This exquisite piece will lead the highly anticipated 124-lot Magnificent Jewels live sale on October 29, alongside a pair of diamond “Oriental Sunrise” earrings.

These earrings showcase two fancy vivid orange yellow diamonds (12.20 carats and 11.96 carats) and share the same US $10.3 million (HKD 80 million) high estimate.