Been seeing these ads around and it just makes my blood boil... the message of the campaign is essentially that you need to buy your girl a diamond otherwise your love isn't real. I have nothing at all against diamonds, as long as it's the gem you choose and not the one you must get otherwise it's not a "real" ring.
I just hate ads that are basically attacks at their competitors, rather than highlighting the benefits of their own product. To me, it indicates that your product isn't good on its own, and you have to resort to badmouthing the competition to make it look good. It feels like bullying, really. There are so many beautiful gems out there, and they all have their pros and cons. Why not just present the benefits of your gem and let people decide what's best for them?