Swarovski necklace with a heart

A very beautiful silver-toned chain from Swarovski with a red heart element, in which a red stone is embedded, without a hallmark, so it might just be silver-plated. Over the years, it hasn't tarnished, as it has been kept in a box the whole time. Worn a couple of times, but it's not my style. The chain length is 42.5 cm, including the pendant, as it is not removable. Shipping is not included, price is negotiable.