Swarovski crystals with clear Tourmaline gemstones made in.925 Sterling Silver. This is a beautiful set for everyday use to save wear on your real diamonds It is a three piece set with a large clear Tourmaline as its center piece in a diamond shape thus fitting all three rings together to have the look of one ring. Size 9 but it is sized small. I found it to be more like an 8 or 7.5.