Gemologists identify untreated morganite through several key indicators. Advanced spectroscopic analysis reveals characteristic absorption patterns absent in heated stones. Microscopic examination may show natural color zoning that typically disappears with treatment. Untreated specimens often display subtle yellowish or orangish secondary tones that heat treatment would remove. Inclusion study is crucial—certain natural inclusion types would be altered by heating. Professional gemological laboratories combine these techniques with reference to authenticated natural specimens for accurate verification of a stone’s untreated status.