^I've never heard of anything like that. platinum doesn't lose metal when scratched...the metal is displaced. if you weigh a platinum ring the day you buy it & weigh it 20 years later, it will weigh the same. gold will not...the metal is lost when scratched.
I've also NEVER heard of a platinum HS ring...ever...especially a ring for a male. perhaps your mom is mistaken. I can't imagine that your cousin's ring was platinum.
I've also NEVER heard of a platinum HS ring...ever...especially a ring for a male. perhaps your mom is mistaken. I can't imagine that your cousin's ring was platinum.