Diva is great for inexpensive costume jewellery and some of their stuff is definately nice than others!

Depending on the look you want - big chandeleir (sp?) diamante earrings and bracelet with some silver shoes would look fab for a glam look! For a more casual look -maybe black shoes with some greeny/blue turquoise jewellry - either a bangle and earrings/necklace!(If you do both necklace and earrings make one big and the other small!!) I love this look in summer - as the black sets off the turquiose beautifully!

Or just plain silver but BIG!! Nice big earrings and some chunky bangels would look great too!!
Have fun planning!