The title of “biggest diamond ring” can refer to different achievements: the ring with the most diamonds set on it or the ring featuring the largest single diamond. Currently, the ring with the most diamonds is the “Eutierria” ring, which holds the Guinness World Record for being set with an extraordinary 50,907 diamonds. The ring weighs over a pound with an 18-karat gold base and has a total diamond weight of 130.19 carats, valued at $785,645[1].
If referring to the single largest diamond featured in a ring, the Cullinan Diamond Ring stands out, showcasing a monumental 530.20-carat pear-shaped diamond, making it one of the most significant individual stones ever set in a ring[3].
For the world’s most expensive diamond ring, the Pink Star Diamond Ring is record-breaking, set with a 59.60-carat fancy vivid pink diamond. It sold for $71.2 million at auction, making it the priciest diamond ring ever sold to date[2].