I have a sapphire prom dress, i need some accessories?

I have a sapphire prom dress for my prom in June, and it has sequins at the top, so the woman said i don't need a necklace, i have a sapphire ring, like Kate Middleton's, and i'm getting a flower corsage to go as a bracelet, i was just wondering what type of shoes i should get, and also bag, like colour. The beads are silver...thankyou!