Gorgeous HEART RING 💍 MARKED SJ 925, SIZE 7.25 Mark𝒆𝒅 with Hallmark SJ925 thank you for shopping! SJ engraved on a ring means that your piece of jewelry is from a well-known company called - Supreme Jewelers. Also, a number on rings denotes how much silver or gold a ring has. 925 engraving particularly means sterling silver. Blessings Lynn