Cobalt blue (also known as royal blue) is big news this season and is great for colour blocking. But it hasn't been widely available in jewellery.

Earlier this year, in anticipation of this trend, Miss Milly launched the bright blue colour in its Milly Pearl range featuring a necklace, bracelet and earrings (pictured above), and it's selling well.

Click here to see Millie Mackintosh rocking the cobalt colour block.

The Miss Milly brand supplies a wide range of gorgeous, great value jewellery. Visit www.missmilly.co.uk to see the full range.