As regards yellow plating, if the jewelry is handled with care it will
last for long time.If it constantly subjected to harsh chemicals or strong detergents it will fade
or tan sooner. Like even in the case of real gold, all metals fade over a period of time because of the reactions of the atmosphere.
Even the light under which you are keeping the ring will make a difference in tanning or fading.
When this fading or tanning happens, all that has to be done is to get it repolished at your local jeweler to get back the shine. This is the case with gold as well as silver. Metal may be rhodium plated to enhance appearance and reduce tarnishing.
In the case yellow gold plating over silver, so I would personally
recommend not wearing it while having shower or doing dishes to have the shine for a long period of time.
Jewelry photos are enlarged to show detail.
for more details please refer to pictures
If you have any questions please feel free to ask.
Thank you.