As Mawi is very elegant and feminine, a clutter of other accessories wont work.Minimalism is key.
Topshop. Whereas high street royalty Topshop has a 70's cool feel when it comes to jewellery, unlike Mawi, Topshop has a mixture of both structured and simple accessories, showing that they can "Cater to all styles."
I love the fact that all of their peices are unique down to the last intricate detail. like a type writer necklace or a alligator ring. Topshops jewellery will look great if its on its own or amongst loads of other accessories.