Raw Herkimer Diamond Ring in Copper

I am so in love with my ring and herkimer necklace.

It is beautiful but the cooper already oxidised and tarnised after one wear i thought itwas treated i can clean and seal it myself but i thought the metal was treated already.

Herkimer diamond copper ring.

Very nice ring just wish that the Herkimer diamond was more bold and bigger on the ring mines was tiny and I get that you get a different size on each ring that they are not all the same.