Light is very important in a room. Side lamps give light to a room, but their light is usually secondary, chandeliers are the accessories that give the room the main light.
Here are three coll chandeliers that are considered now, to be trendy and fashionable.
Oh! And Gwyneth Paltrow has them in her summer house in the new Hamptons!
If you have a room with cool, light colors, then a feminine and clean crystal chandelier, for example: Large George II Chandelier, is a perfect complement. Especially if the furniture is sleek and more to the minimalist style, it'll give a very welcomed twist.
If you'd like a really elegant chandelier that gives the effect of old candle lamps, then a clear, Amber crystal chandelier, from Lamp Works for example, will be a great addition and will be great when on.

If you'd like an elegant, sophisticated and flamboyant add to a serene atmosphere, then a Venetian Chandelier from Salviati will do the trick.

It's never a bad idea to add something that gives a sexy twist to a modern room or a minimalist style.
Simple is good, but too simple will become boring with time!