Lowest price:$57.98Description: minimum 7.25ct 12x12mm fancy cut snow crystal cut zandrite(tm). color change. zandrite is a type of synthetic glass that was created by a major glass manufacturer. a developing scientist came across the idea that the new creation had gemstone marketing possibilities: that began a new gemstone trend. it has a color change which is why it was given the name 'zandrite' as a take off of the very expensive natural gem alexandrite. it ranks 1.5 on moh's the same as glass.