Determining exactly how long a gold-plated jewelry will last is very tricky because it is affected by a number of factors. If the plating is relatively thick, it may last longer than a piece with thin plating. Pieces that are worn on a daily basis will also tend to wear out more quickly because it is often coming in contact with the outside world and elements that can cause damage.
As a general guideline, 0.125 microns should last 6 months or more, while 1 micron should last more than a year. However, with proper care, the plating can last much longer.
All sterling silver jewelry will be oxidized when exposed to air, so it will tarnish over time. Tarnishing might come much slower or faster depending on how much they contact with agents such as sulfur, perfume, skin creams, chlorine, hairspray, and acidic skin pH which causes a chemical reaction. The reaction might make it lose luster but it will not cause significant physical damage. Tarnishing is bound to happen, but you can slow down or reduce the amount of tarnish by cleaning it and taking good care of the jewelry.
If you are currently experiencing high return rates due to pieces tarnishing, below are some recommendations for you:- Educate your customers on how to properly take care of the jewelry.