Yellow Gold > Rose
Since 2015, we have seen a real shift from traditional Platinum and White Gold rings to colored metals like Rose Gold and Yellow Gold. I think 2018 will be all about going back to basics when it comes to metals. I've seen couples requesting more traditional platinum as well as yellow gold rings over the rose gold of the past few years. I also think a lot of women are opting for the metal hue which complements their skin tone best over what color metal is in trend.
[Photos courtesy @theclearcut]