Thank you for contacting Mearto with your appraisal inquiry, and I apologize for the delay. This is a vintage pearl necklace in good condition. There is no significant wear or damage present, and the necklace appears fully intact. The gold clasp and diamond are in good shape, and the polish of the gold is bright. Given the condition of this piece, and completed auctions of similar items, a fair market estimation is 1,500-1,600 dollars. Please reach out with any questions. Bo Stuck