U-treasure which deals in authentic character jewelry for adults, will release an engagement ring featuring Pikachu from "Pokemon" on October 26th, 2021. The Pikachu Solitaire Ring, a popular engagement ring with a design of a male and female Pikachu staring at a diamond together, has been upgraded to hold a diamond of 1 to 1.999cts (carats), which is larger than the previous version. The Pikachu has also been increased in size to match the diamond, and the design shows the different shapes of the male and female tails and their lively expressions.

As a bonus for signing a contract, one Master Ball accessory case will be given for each product. The product will be available at the U-treasure Concept Store Ikebukuro and U-treasure Online Shop.