A beautiful multistone necklace with rose gold 14”chain and 2.5 inch extender

I bought this rose gold , multicolored necklace with pendant made up of eight stones (4 being small round and 4 pear shaped ) necklace to go with a specific dress which I can no longer wear , so I’m willing to part with it. It is only been worn once the pendant is approximately 1 inch in length. It’s a delicate necklace and would be a very beautiful accessory!!