Am I wrong for finding the comments some people have made about my engagement ring insulting?

So I just recently got engaged on Valentines day this year. I was so happy about it and absolutely loved the ring my fiance had custom made for me. For a little back story I was born in October and have always loved opals. In my opinion I think they are more beautiful then diamonds because each one is very unique especially if they aren't lab grown. My fiance knows this and handpicked the most beautiful opal stone for my ring. Then had someone custom make the setting and band for it based on what he thought suited me. Since getting my ring I have made posts about it on social media. After showing it to some of my work colleagues, friends and family members some people made a few comments that just didn't sit right with me. They would say "I wasn't sure about it but seeing it in person makes it look a lot better" or something similar. Now I know some people might not like how untraditional my ring is but I know that even if I didn't personally like someones engagement ring I wouldn't tell them that. I'd just say "it fits their personality" or something like that. Am I wrong for feeling upset?