Gold & money recovery

Hello sir/mam, I'm facing a trouble.The problem is I met a person on Facebook & became friends later we used to regularly meet after 3 meetings. He asked me money because he's having problems. Being good towards me I trusted him & gave him.This was repeating for 3 to 4 times even it's huge amount 30k to 40k..later on again he used to ask me but I refused. One day he called & asked me about 1.5 lakh I said him I don't have that much huge amount & started irritating me so he asked me to give gold chain which he will keep in Muthooth finance & get the money within 1 month he will bring out so I gave him 4 tula chain & 8gms earrings.. For some personal issue I wasn't in contact with him for 3 months later I called him asked about gold & show the receipt but he's adding stories. I gave him on 30th March 2019 till now he's not responding. I don't know his address but I got his cousin phone number. Last month I gave him warning then he said he's going to Chennai won't come for 1 month & he's active in his social media & he kept his friends list private.. Kindly advise me