Ring for my boyfriend?

Okay so my boyfriend is getting baptized & I'm trying to figure out a present to get him to show him how proud I am of his hard work! His parents got him a watch with a really sweet ingraving so that's out, but I found this ring that I really love. & I was thinking about it but do you think it's odd to give your boyfriend a ring like this? I mean we've been through a lot in our 3 years together & I think it could also symbolize our promise to love God more because the closer we both are to God the better we are as a couple. Even if you're not religious can you give me opinions on other present ideas& not be rude about our personal choice to follow Christ? 
Thanks in advance! This is what the ring looks like btw