Chow Tai Fook Gold ring wear for two days how to "fade"?

Spend more than 3,000 dollars in the Chow Tai Fook counter to buy a gold ring, wearing a two-day withdrawal face large area discoloration, is a fake or some other reason? Mr. Liu, the citizen, reflected this "strange thing" to this newspaper. Mr. Liu said February 4 was the 20 anniversary of his wife's wedding, and he chose two gold rings in the Chow Tai Fook Jewellery counter to surprise his wife. Among them, the male ring value 3156 yuan, the female ring 1694 yuan, spent 4850 yuan altogether. Mr. Liu said that on the morning of 6th, he found his 7.11 grams of ring face large area fade, his wife was also surprised, "she wore the gold ornaments for decades, never happened." "Mr. Liu and his wife identified the ring has a quality problem, to find a counter request returns, the two sides negotiated failed." Yesterday morning, Mr. Liu with "fade Ring" came to this newspaper, the reporter saw that the ring face does have a large area of discoloration, discoloration place have become a silver, Mr. Liu with his hand in the ring on a hard rub, the ring was rub place unexpectedly turned white. Yesterday afternoon, the reporter with Mr. Liu came to the Chow Tai Fook counter. Hu, the head of the counter, said the ring quality is certainly not a problem, it may be the customer stained chemical substances leading to chemical reactions. She told, to determine whether the ring components of the quality problem, can go to the repair point to use muskets to spray, if the color reduction, it is not the quality of the ring itself, if the ring impurities too much, not only can not restore will also become black or even break. Reporters along with the counter to the brand repair point, a master Wu with a rifle to the ring spray two or three minutes after the ring is indeed restored. His analysis may be Mr. Liu Fried whip in the whip of sulfur and other chemical components, resulting in gold discoloration. Why does gold ring change color? Wuhan Gold Jewelry Industry association secretary General Li Yubin told reporters that the general gold ornaments will not appear this situation. The reason for this situation may be that the ring itself gold deficiency, excessive impurities, or the wearer encountered chemical substances, oily ingredients and gold composition of the chemical reaction. But in this case the ring is restored by fire, it is true that the ring gold in the gold standard range, may be Mr. Liu accidentally contaminated with the powder ingredients in the firecrackers reacted, "also may be within the standard range of other 1% of impurities, silver components more, also easy to change color." "In this respect, Li Yubin remind consumers that wearing gold ornaments is best not to touch cosmetics, chemicals, perfume, bleaching powder and other substances." If the gold ornaments discoloration, as far as possible to the counter to wipe, but also can use their own alcohol, but do not use their own fire. After consultation, last night, the counter returned Mr. Liu 4850 yuan in cash.