I have not cleaned. The clasps works great on brooch and earrings, no missing stones and I believe for its age it is in great condition. Normal wear for age. Please see pictures for more details. If you have any questions or would like more details, please do not hesitate to ask. All measurements are approximate. Non smoking home. We do have a dog. I will drop off for shipping next day, Monday through Saturday. If you purchase on Saturday or Sunday, I will ship on Monday (If the post office is closed for a holiday, I will ship the following day). Thank you for looking! I am not an expert on jewelry and have done my best to give correct information. I purchased this as vintage, I do not know the exact date of the piece. I have not cleaned and I have made no repairs, or do I know if any repairs have been made before my purchase. Thank you!