mm sure and 500 BC it was only an olive wreath called „kotinos” that was cut from an olive branch that grew in Olympia
But the gayness of Greece sure did live on
i dont know you probably have more info about the matter, you imply that the ceremony in honor of Zeus had gay theme? the games evolve-changes so dont think we can compare 2500 years ago or 100 years ago if they used gold or not, civilization was different