A lot of seashell type jewelry that I've come across is the sort of jewelry sold in beach town souvenir shops. Nothing to write home about, so I wondered what other possibilities there are out there.
I found an interesting beading blog that had a post about the different types of shells used in jewelry making. The writer of the blog has an overview of the various types and pictures of each one.
Photo credit beadsandpieces.com
The shell featured here is called a "hammer shell" also known as a violet oyster. I love the streaked color and the rippled figure. Imagine using this to make a pendant necklace? It would be just stunning.
For more photos and a description of each style, you can read the whole article on seashell jewelry here.