Mary : Have you ever seen a colored diamond?
Susan : Only in advertisement designed to attract the attention of the ultra rich.
Mary : ---- .
Susan : No, I didn't. But that's a good reason for not wanting one!

A) Australia's most prolific diamond mine is the Argy one.
B) Did you know that blue ones are rare than pink?
C) Did you realize that of the diamonds mined only a very small percent are of jewellery grade?
D) Did you know that colour in a diamond is due to a slight fault occurring in the development?
E) Prices have risen by over 25%over the past year.

I think B, you?