Well but don't you say it yourself that the diamond is a kind of "showy waste"* to show that they are able to command a fiancé/husband of their own that is able

Well but don't you say it yourself that the diamond is a kind of "showy waste"* to show that they are able to command a fiancé/husband of their own that is able to provide? That is a symbolic reason no? The Mating Mind, Geoffrey Miller