This fine green tourmaline pendant has three female vario bayonet connectors. The oval tourmaline cabochon is 13 mm x 11 mm with 9.29 ctw and bezel set with 18 yellow gold on an oval stainless steel base of 17.5mm x 15mm.  It works with any chain ( as seen in the image) or choker with a male bayonet clasp as a centerpiece or connecting other components with male bayonet connectors. The black mesh chain is not included for demonstration only.