This magnificent  skull ring  is  made by the craftsman of Jaipur in India.
It is made of brass (an alloy of copper and zinc). Brass is a good alternative to gold, it  does not change color or decompose over time. She  does not cause allergies, so you can wear it without fear.

It is very easy to clean by rubbing it with a little toothpaste or  soap and lemon juice.