if you have purchased one of these beautiful pieces of Ethiopian Wello Opal, there are a few things you need to be aware of. Firstly any exposure to excessive moisture will cause it to lose its color! Now don't worry though, place it into a bag of rice or a very dry environment, and watch the color reappear. Secondly, Opal is a stone that reflects sunlight, and artificial light as well, but it needs some time of light to create those beautiful rainbow colors. We hand pick each opal, and take pictures of every stone that leaves our shop, because we cannot contain ourselves to the immense beauty of each stone. Thirdly, please don't take a shower with your jewelry, any of our jewelry doesn't fare well with a bath, and the harsh chemicals we use to clean our skin. This will often ruin the jewelry and make it unwearable. The chemicals will ruin the opal, and no, the colors may not come back afterwards. Now please enjoy your pieces, and show off those beautiful colors. Thank you sincerely from the bottom of our hearts for your support. My wife and I have taken such a love to this art, and each customer means so much to us. So please contact us through Facebook messenger if you have any other questions.