Here is my green turban shell necklace:
The pendant is a green turban (also called a "turbo" by other conchology books) sea shell that has been attached to a gold plated bell cap. The rest of the necklace is made up with glass, gold plated, mother of pearl, and top shell beads.
And here is a pair of matching earrings using glass beads and gold plated filigree beads:
Soon, I'll be making some more earrings that match this necklace, so be sure to look for them in my shop.