Unless he knows you don't like gold, expecting him to think that because you're not wearing a gold piece, means you don't like gold pieces, is kind of silly.

Silver is cheaper than gold.

I would believe you wear silver because of the price.

I know people who don't wear any jewelry, but would absolutely love a silver, gold, whatever, piece. They don't wear it because it feels expensive to them, not because they don't want it or don't like it.

It's more like buying someone an expensive baseball in a protective plexi housing, and you find out it's from a specific era, and you didn't know your random boyfriend of 1.5 years doesn't like that era. It's never come up. He never said. Or his favorite players Jersey, but when he was on a team your boyfriend doesn't like from when he was first playing, and he's never said or brought that up.

Said boyfriend would most likely still be thrilled you tried.

I'd question why your jewelry tastes have not come up in 1.5 years. You've literally never said "I like silver more than gold" or any such thing? Why? He's never brought up your jewelry, you've never asked him about what he does or doesn't wear? You've never talked about buying any, or gone out window shopping together?

It feels like it's not his fault from my perspective. I knew about my SOs jewelry within the first couple months together, helped pick stuff for her outfits, and before a year, had done some shopping together. It seems really normal to, you know, be interested in each other, share yourself, likes, interests and such?

If this mess up was so important, then why does it feel like you neglected to make it part of your relationship?