Probably a 9. There are some pieces I won't mix.
For years I was a solid gold woman, but I found that matte gold was better than the shiny stuff.
Then I fell in love with David Yurman. My first piece was a solid bracelet I got at an estate sale, but for years I had been drooling over magazine ads, and it wasn't long before I worked in combined metals.
My wedding band is wide gold, but the prongs on the diamond are white gold. I have a Must de Cartier gold vermeil watch and will wear a mixed metal bracelet with it if I am going to wear silver on the other hand.
Some pieces just don't mix well, though.
I still have some gold pieces I don't wear, and a few pieces that are hard to mix. (Our house was burglarized last year and a lot of my jewelry was stolen and they didn't catch the creeps who did it.) I've thought carefully about it as I've bought new pieces.
I prefer not have have much shiny metal trimmings on bags and shoes. I don't want to worry about my silver bracelet clashing with gold hardware on a bag.