0.80 ct J vs1 according to the accompanying GIA report 2456255775, as well as two smaller round brilliant-cut diamonds in the shank with a total weight of 0.07 ct as stated, size 58, total weight 3.5 g. JSS (Jarl Sandin), Gothenburg 2023. Case and pouch included, along with a certificate from Jarl Sandin.
Wear commensurate with age and use.