This necklace is so pretty it has an unbelievable luster. In the dim light it looks like it's almost glowing in the dark. It's 18 in Long. one of the beads is broken as seen in the pic, cracked in half but it's towards the upper part of the necklace. I am not 100% sure if these are dyed shell, dyed MOP or other. Lobster claw is not marked sterling and may be silver Tone.