It will stay as it is for a very good period of time. These are destination jewellery pieces. It has the best quality of plating done and i can assure you that the colour and shine will stay like this for a very long time.
You just have to follow some instructions :
* Avoid wearing delicate jewellery while cooking, gymming, swimming, or any household chores.
* Avoid direct contact of perfumes, soaps & sanitizer
* You should remove your jewelry prior to showering.