These beautiful lapis lazuli rectangle earrings is made by craftsman from Jaipur, India.

 It is made of brass (an alloy of copper and zinc). Brass is a good alternative to gold, it does not change color and does not break down over time. It does not cause allergy, so you can wear it without fear.

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