Handmade connector set. Approximately 6mm cape amethyst is used. Natural Stone Cape Amethyst 64-facet cut The color appears darker in the image, but it's a bit lighter in reality. The 9-pins use K16GP. This is a handmade item created by an amateur. I take care, but there may be small imperfections that I don't notice. Please refrain from purchasing if you are sensitive to such details.