Diamonds are a womans best friend
dog is mans best friend
something is wrong with that I can’t put my finger on it.
And a lot of women are dogs.
(Running for cover now...)
Traditionally, diamonds were the best form of “insurance” a man could provide for his family. In bad times, diamonds could be easily hidden and easily transported, while providing some sort of a guarantee that starvation could be kept at bay for a very long time.
Thus, diamonds were referred to as a woman’s best friend.