We offer both a verbal and full report with treatment disclosure & origin opinion for the listed major
Ruby, Sapphire, Emerald, Spinel, Demantoid, Alexandrite, Paraiba tourmaline, Padparadscha sapphire.
GCS gemstone reports can be issued for individual loose gemstones, gemstone pairs, gemstone sets, as
well as for mounted jewellery (rings, ear clips, necklaces, brooches etc.) providing the mounting allows
for adequate testing.
GCS gemstone reports include the following data based upon our judgment on the day of testing: