Gold,Silver And Diamond

Glittering gold shining silver and sparkling diamond.what is the scientific reason behind this.All that glitters are not  gold is a proverb that says the glittering nature of gold from time immemorial.The glittering nature of gold is linked to its atomic status.Gold has a total electronically saturated status in its atomic form.Therefore it has no tendency to combine with anything it comes in to contact.Because of this the surrounding atmospheric air or water or other materials that may come in to contact with gold can do no harm to gold.Generally all metals are shiny in nature like gold.But what is the difference is all other metals except gold combine with oxygen that is present in the atmospheric air and form their corresponding oxides which are not shiny,.but gold remains as gold always and it glitters for ever.
                                            Silver assumes more or less the same nature in its atomic state like gold but to a lower extend and hence it is shiny to lesser period of time and it gets shining back when it is polished.                                                          Diamond is sparkling because it has the highest total internal reflection and has the highest refractive index of all the materials available in nature.You may wonder that diamond is nothing but carbon in its allotropic form.