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Diospore that is not a color change

A broker I sometimes use offered this rose colored diaspore for sale… I have never seen one that wasn’t green and changed color. This one is rose color, beautiful stone, and has a minor color shift to an orangy red when viewed with incandescent lighting. Have any of you even seen these before? Had a GG certify that it is natural diaspore and unheated/untreated… ! Amazing gemstone.


What is the source?


I have a cut stone from czech sovica which is clear and is not colour change but is natural Diaspore.