Not positive but some indication that it may have. Emil lab calls the color change from dark grayish blue to light violet.Gia says dark brownish green changing to purple. This item is in the category "Jewelry & Watches\Loose Diamonds & Gemstones\Loose Gemstones". The seller is "exotic_sheepskins_usa" and is located in this country: US. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, Korea, South, Belgium, France, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Mexico, Norway, Croatia, Republic of, Bangladesh, Bermuda, Guernsey, Gibraltar, Iceland, Jersey, Liechtenstein, Sri Lanka, Luxembourg, Monaco, Maldives, Pakistan.