DZI Cats Eye Chrysoberyl Sterling Pendant Large Green Stones

Large and unusual pendant composed of green cat's eye stones in sterling silver. They're an olive green to a greyish green color and I believe they're chrysoberyl stone, but I'm not sure. I do know that they are beautiful, with a satiny cat eye sheen and subtly marbling. They're polished but kept pretty natural so the shapes aren't uniform, as you can see in the side views. Open backs with a bale at top marked 925 DZI. The pendant measures 2 3/4" high excluding the bale and 1 1/2" wide. It has a total weight of 30 grams on my scale. The central stone measures 5mm x 6mm, to give you an idea of stone sizes. Lovely vintage condition with no issues, ready to be put on your chain.