Many do not believe in mixing metals. I am not one who obsessed over my metals, a little mix of gold and silver tone if done right can be a good thing. One tip if you want to mix silver and gold tone is to add a metal which color is in between, such as brass or gunmetal. I recently obtained these amazing Afghan cuffs that for sure makes any outfit and paired them with a simple silk dress.
Cuffs: from Afghanistan (from the store)
Wedges: Maiyet (here in black)
Bag: available at the store (309 E 9th street)
Earrings: from India (similar here)
Sunnies: Ray Ban aviators (find here)