Why is gold considered to be valuable?

gold and diamonds are famous for royalty and high cl. back in the days, the royals wore gold and diamonds. and gold are used to convince people through thoughts and other ways, just for pleasure of money. you can`t say gold is just as meaningless as the green paper we use because its so valuable that everyone wants it, well in this case not you, but everyone else because its the highest cost object nowadays and this won`t be changed. all the gold mine are going to be gone someday and soon there will be more expensive gold. diamonds, however are another sparkling cly stone that are women's best friend.