Lost Necklaces - Gold chain with coloured jewels

I lost two gold necklaces which were tangled together. One with a purple butterfly and the other with coloured jewels (pink, purple, blue). They were tangled together so I took them off and put them in my pocket but they fell out. They were lost between Dundrum luas, Harcourt luas, Whelans and Camden St. They are of sentimental value so I would really appreciate whoever found them could return them to me.