New Cloisonné Enamel ‘Ammonite’ Necklace

I finished this pendant last night. It is engraved silver set in silver with a pierced ammonite design on the reverse. It has 18ct gold Cloisonne and a bezel set opal and tourmaline on the front along with a fine silver ammonite. I have left the finish a soft matt to add contrast. Eventually it will be part of a necklace but I can’t decide which beads at the moment. Roman glass, Red Creek jasper or the African Turquoise Jasper? That is the question.