These things were also called as "poessy rings" or "love poem rings" which have few saying or lines of poems engraved upon them. Mens promise rings could be worn as friendship rings, pre-engagement rings or just purity promise rings. https://socialmediaentry.com/story3434238/diyarbak%C4%B1r-escort-diyarbak%C4%B1r-elden-diyarbak%C4%B1r-ofis-escort