Isaac van der Straatan chooses the occasion of his daughter Isabel's birthday party to announce his decision to sell Vanders - his chain of exclusive jewellery stores. Everyone is stunned - except Isabel, who isn't there to hear it. She is having far too much fun in the garden with rock star Taz Taylor. She couldn't care less about the family business, as long as she has something sparkly to wear to a party. But her ambitious sister, Danielle, who has her own plans for Vanders, feels betrayed. If Isaac no longer wants Vanders, why can't he give it to her? However, Danielle is not the only one interested in Vanders. On the day of the party, Isabel's best friend, Jemma Stortford, wakes up to find a handsome stranger lying beside her and cannot believe her luck. But, having conned two women into bed in two days, Nico Morales is feeling more than a twinge of guilt. He has broken his number one rule - never get involved. For Isabel and Danielle, life begins to!get a little dangerous - it looks like diamonds are anything but "A Girl's Best Friend"...