Alas I don't have a picture handy. Years ago it was fairly easy to find in the Chanel stores where I live. You can at least ask your SA.
Or this is an option that I also chose too - the all black! That way I have it covered. But to me, the all black version looks a little more casual than the shinier metals.
Also try on other bags, even in the store try on a larger size flap style in gold and then in silver, see which metal "stands out" the most to you, standing out could be a positive or a negative. You be the judge.
Whichever one makes your heart sing, go for that one. You can always look for another leather in a different metal hardware later on (despite the looks from your fiancé!) That way you can feel you had a distinct reason to get another, even in the same colour leather! (I think we all understand this version of math.)
Good luck!