i Dont even have my ring for 3 months and its turning yellow - we were not informed about this at all. i am very unhappy.

My Fiance bought a white gold ring on 30 June 2017 - He finally asked the question on 22 July 2017. after a few weeks I noticed that the diamonds are turning yellow on 2 September we went to Cradle Malls NWJ the lady then also saw the diamonds turning yellow confirming that this was unacceptable - she contacted mall of Africa and advised them about my concern and frustration today 19 September my fiancé finally got an opportunity to go to the branch he purchased the ring from to see what's going on. They now advised us that the ring needs to be send to a jeweler every 3 months to get cleaned, so you are engaged and every 3 months for a week+ you don't have a ring to wear, no one ever advised him abut this otherwise he wouldn't even consider to buy the ring. if i send my ring back and it comes back cleaned then again turns yellow i have no foot to stand on. i know people who had their ring for 14 years and it never went yellow ever and they only had it cleaned twice and definitely not because the diamonds went yellow! He got the ring on a big discount and paid almost half price for the ring - if we request a refund we will only get the amount we paid obviously and would have to buy a ring worth much less. how can this be right? The other alternative is that they send the ring to Durban and then have it examined and then they will decide what to do - this can take up to 4 weeks... you are only engaged for a small period in your life and now thanks to NWJ i will be engaged with no ring if i send it t Durban. This is something that happens once in a lifetime and now its very unpleasant - this is so unfair. I actually refused to leave my ring there as i don't feel comfortable leaving my ring at a place that does in actual fact false advertising by not informing customers properly about what they buy, heaven alone know what they can do to my ring. My Fiance went out of his way to choose the perfect ring and saved up for this - now to only feel that he made a big mistake. I would appreciate if head office can contact me with a solution and some constructive feedback. This is unacceptable. My fiancé regrets ever using NWJ.