Mr. Warren Buffett
Berkshire Hathaway Inc.
3555 Farnam Street
Omaha, NE 68131
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Tanzanite will easily clean with gentle solution made specifically for jewelry or warm soapy water. Have your jewelry professionally cleaned and checked three to four times a year. When not worn, tanzanite jewelry should be stored in a jewelry box lined with soft fabric. Never clean your tanzanite with an ultrasonic cleaner.