sleepydove
Registered Shopper
Sorry to hear that you had a problem as well.It did state on the Anchorcert ring passport about being heat treated which I believe most Tanzanite stones are but Cobalt coating which is placed around the girdle of the stone to enhance the colour of lesser quality stones is not acceptable. I am not saying that mine had this cobalt treatment but apparently it wears off after a few months, the same time frame as when mine started losing its vibrancy so it does make me wonder.
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Can you remember how long it was when you noticed that it had started to lose its sparkle?