necklace with crystal and shell beads

A beautiful necklace made with two strands of white freshwater pearl, alternate with crystal beads and square shape shell beads. In the middle has a square shape shell.
A tassel of four string is beautifully designed and dangled at the end of the necklace.
The pearls measure approx 5-6mm with excellent luster. ended with a white gilded clasp. the wearable length is 20".