Lovely 18 inch single strand natural pearl necklace. I picked this piece up at an estate sale so I have no history to tell. I've had it for quite awhile - hoarder that I am. Their lovely - I am not a pearl expert so make sure you ask any questions. Seems to be knotted cotton - perhaps silk? between each lovely pearl. There are no chips to any of the pearls. I have had it carefully stored. Only strand that I have. The clasp is stamped 14 kt - closes securely. The pearls are between 6 and 7 mm - see picture 9. Luster is uniform - as with all things run by mother nature there are a few what I call little "dimples" here and there. I think this set is lovely.