Q. Care of emeralds & tanzanite
What is the best way to clean my emeralds and tanzanite rings? Also, is any "preventative maintanence" required? (oiling, etc) thanks very much for your time! - Virginia Beach

A. Tanzanite is very brittle because it is heat treated to draw its vibrant color. It should never be subjected to an ultrasonic, but could be cleaned with a soft toothbrush (not toothpaste, as the old wives tale goes) and diluted Mr. Clean. Emeralds have often been dyed and oiled to mask inclusions and improve color. In fact, there are so many treatments of emeralds, it is best to have a knowledgeable jeweler clean it. In the absence of one, use very diluted Mr. Clean with a soft toothbrush and do not let it soak, as any treatment could come out or loose if it has been resin filled. If your emerald appears to have lost some of it's color, you might consider mixing baby oil and green dye and soak it for a few minutes. If you are not comfortable with this home remedy, take it to a knowledgeable jeweler for restoration, repair, or replacement. For additional information, go to our web site, davidnygaardfinejewelers.com and look at our education page, where you can read all about both gemstones.

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