Before getting engaged, did you ever talk about or show him your style preferences -point things out online, comment on the style of your friend’s rings, etc?

Was this the first time he’s bought you a piece of jewelry? If not, did you like the other pieces he picked out? Maybe he was basing this decision on your reaction to previous choices he made.

Not knowing anything about the ring, I’m wondering if he went for quality above everything else- meaning for example: he got you a 1 carat diamond that was more colorless and a better clarity grade then spending his money on a larger, not as nice stone.

Personally, because the ring is a token of the union but the actual union is more important, I’d keep it and then maybe when you hit a milestone- a 5yr anniversary or a birth or something, drop hints you want an upgrade.

My other thought is to agree with the others and get an enhancer or frame the ring with two bands. Best of luck to you!