For the last hundred years the traditional engagement ring is considered to come with a large central diamond. No matter how beautiful sapphires, rubies and emeralds are, no matter the price, diamonds remain the favourite rock of brides. And more and more interesting are the colored stones. In nature, diamonds are a variety of colors, and they may cost less than the colourless ones. Yellow canary stones cost $ 20,000 per carat, pink and blue diamonds start at 30,000, red – from 300 thousand, green – from 250. A serious investment dedicated to the most exciting experience in the life of a girl.