Inspired by the royal engagement, this week's colour cocktail is about adding a touch of luxury to your space. Kate Middleton looked radiant in her sapphire blue dress, dazzling the world with that ah-mazing ring. Now your home can dazzle, too! Rather than buying the over-priced engagement mug, bag yourself a new-look interior, instead. Treat yourself to a shimmering throw cushion or perhaps dress up your lighting with a glamorous new shade. Be sure to work in some delicate grey hues to your base colour scheme, as this will ensure your homage to the royal engagement airs on the right side of sophistication. Order yourself a sapphire surprise and come next summer you'll be sat watching the wedding in your own little Buckingham Palace!