A beautiful frosted Agate stone in a deep purple, I have set these on a Tibetan Silver rose of mixed metal ( no nickel) and used sterling silver hooks. also available on lever backs or studs. The Frosted Agate is a lovely natuaral stone which I love to work with, they say the Agate stone gives "protective properties" & remove any "negative energy" so they are a very popular stone to work with and I love that these even though are different shades they are all so different within themselves. Thank you