Perhaps they should pick out their own ring.

I have heard that you have to be careful of jewelers. I think you have to build a relationship with the smaller stuff like watchbands, etc., find out how they operate. I have one I use to fix and adjust my watch bands. I've had an occasional free adjustment.

If she likes simple stuff, then that ring is too stylish. Find something simpler and more elegant.

Also a competent jeweler could transform that ring into a pendant, necklace, or brooch.

Just my take. And I like simple, too. Frank Lloyd Wright is so RIGHT!