Vintage signed Sphinx citrine yellow / topaz orange glass riviere necklace, triangle shaped crystals set open-backed in silver tone settings Plastic The necklace has a length

The necklace has a length of about 17 inches and fastens using a gold tone screw barrel clasp

and I have seen similar designs attributed to Max and Norbert Neiger

collet set with open backs

blue and green striped inclusions

Vintage signed Sphinx citrine yellow / topaz orange glass riviere necklace, triangle shaped crystals set open-backed in silver tone settings Plastic The necklace has a lengthGorgeous vintage glass rhinestone riviere necklace claw set in silver tone with large open back citrine yellow orange faceted glass rhinestones emulating gemstones. A lovely example of this range of riviere necklaces, which the Sphinx company produced in many colours however these crystal shapes and the signed panels are harder to find. Sphinx were a highly respected UK brand who manufactured jewellery for Kenneth Jay Lane, Saks, Bloomingdales, Neiman