In Hong Kong, blue has never looked quite this serious. During Christie’s Hong Kong Luxury Week at The Henderson, the necklace known as The Royal Blue stepped onto the block and instantly reset the conversation around Kashmir sapphires.
Set with 16 cushion shaped Kashmir sapphires that total 104.61 carats, all graded royal blue and unheated, the piece carried an estimate of 100 to 150 million Hong Kong dollars and went on to achieve 125,450,000 Hong Kong dollars, around 16.1 million US dollars. It became the most valuable jewel offered at auction in Asia in 2025 and a quick shorthand for peak gemstone rarity.







