Dark purple graduated lucite necklace

Measures approximately 24.5" in length with graduating beads with sizes 16mm to 8mm. The clasp is marked pat 537985. I'm assumibg thus is a designer piece from the quality of the clasp abd beads. Kindly refer to the photos for the wear and condition of the item. A new box will be provided for storage or if you wish to give it as a present for any special celebration. Questions and offers are very welcome.