Since the gold plated jewellery utilises a thin film of gold on top of a non-gold metal, the metal underneath can be exposed after rough and tough use. However, with proper use, the gold plated jewellery can last anywhere from 2-3 years without any tarnishing. After being tarnished, one can also choose to get a reapplication of a thin coat of gold and viola you have brand new gold jewellery again!