On the whole....in most cases a Mother can be a girls best friend.
That said, there is a lot of romantic ideas about a Diamond.
Women have loved them for a long long time, and will continue to do so.
For the women who like myself, who have no interest! we find other things in life that become important.
Years ago, some women would fall in love, and make sure! they had a nice big rock on their finger.
When I asked 'why' to the person telling me(a grand lady she was) ''Oh! my dear if things went bad in the marriage, that diamond a few years later was her way of starting life again",by selling it..
The value was then placed on the one big stone....(Mind you, it would take some years in those day to be even able to bail).The picture on the left is a 1950's engagement ring, and today one would be lucky the be able to buy just one diamond that size! They were a lot less expensive,but! after a few years like anything they do go up in price.
Also people got a good price in those days, hence I think the saying ''Diamonds are a girls best friend''! was true because she had little else.
It may seem brazen, but it was a part of the times.