I have a similar-but-different problem with my ring. I actually have a diamond, as I tend to change my mind on colors too often and wanted a simple solitaire that sparkled.
Oddly, I get harassed about it constantly. I work in marketing, and one of our clients is a jewelry store who specialized in colored gemstones. Colored engagement rings are really big right now, so they do a lot of that. I cannot tell you how many times they (and my boss, a fan of theirs) make fun of my ring. Diamonds are passe, they say. It's such a generic ring, they say. A ring from Zales has no special meaning, they say. You need a ring unique as your love, they say. On and on and on.
I now alternate between staring at them until they stop talking and saying cheerily "this ring symbolizes a sentiment from my husband, why would I change it for you?"