Never worn necklaces one has a glass heart the other is a gold chain

Glass heart and gold chain; I have no idea if the gold necklace is 14k or what, I know it has been in my jewelry box for years never worn it could be the real deal I gave no idea I just know it makes me itch (sensitive skin issues) I can only wear surgical steel silver stuff. My loss your gain. Measurements are in the pics; no bends in the gold chain nor the glass heart necklace