So a very interesting question, I decided to pick it up. Many people, when I worked as a jeweler called me with a question: – I have a dark ring, perhaps I was deceived, gold does not darken, but I have and so on My head comes a story from the mid 90-ies of the 20 th century, when they were dashing 90's and customers often become people with professional experience – 'Bandits', and so once I did the same customer seal, and it comes two weeks after the adoption of order and not very happy that the gold was dark and brown. I naturally have always worked with the test metal and was sure to sample the product, but the man was convinced of the contrary. As a result, we have made independent examination of this product and it concluded that was wrong. As it turned out he had health problems and of course gold is dark, when a person has such a problem. So when you have a dark gold, causes can be much, but if you did not buy gold ornaments on sale in Turkey or elsewhere – ever. Typically manufacturers and sellers do not want problems with gostorginspektsiey and and vparivat you will not! This is simply as an indicator of how the first call you are not yet very pleasant. Therefore, take care of yourself and all you will be fine!