Are diamonds a girl's best friend?

I wonder if Marilyn's diamonds are real?
I love anything sparkly and I adore jewellery.  I'm quite boring though I just wear the same jewellery all the time.  I don't have any diamonds, apart from some diamond stud earrings which are the only earrings I wear apart from pearl studs.  A boy once bought me a gorgeous antique diamond ring but I gave it back when we split up.  All the rings and