The Rafaello & Co company designed her a flexible finger ring from its Rafaello Couture line, reported Us magazine.
The intricate accessory is made of Colombian green emeralds and fancy yellow canary diamonds.
The 'Pop That' hitmaker also gifted Kardashian with a set of grillz, including one with diamonds and the other without, on her birthday on June 27.
Kardashian wore a draped white gown that showed off her famous curves while her rapper boyfriend held her close during the party. The reality star took to social media to thank her many fans for their birthday support.