The Vedas don't discuss AntiBiotics as far as I know, but same have saved my life four times now. The Vedas don't teach Bengali, but it's a beautiful language. We all get the idea, that gems are special. Krishna wears magical Gems. There is a tradition of giving a diamond on wedding day- complete fools do this too.
All woman buy jewelry and wear it to look more interesting, as do men to some degree.
Therefore, it is related to Ahamkara completely. Classicly, jewels are ruled by Shukra. That fact is not exactly a trump card for the truly liberation bound. Certainly the highest achievers in every sampradaya are renounced and don't flaunt jewelry. And this discussion of changing karma by wearing a gem is just too much.