The product is original rhodium plated xuping - also called medical gold. Its color is a soft golden hue known as rose gold. The stones are zircon - suitable for small and medium sized ears. Color change is minimized - durability is at the highest level. It is a compression earring. You do not need to have a pierced ear to use it. It is sold individually. It does not affect pool and sea water. It should be protected from chemicals. Since it is in the hygienic product group, it is not suitable for exchange or return.