Baldur's Gate Stone is an uncommon Miscellaneous item.
It's really, really an actual stone from Baldur's Gate. Truly, a unique historical artefact. One of a Kind.
Properties
Miscellaneous Items
Rarity: Uncommon
Weight: 0.2 kg / 0.4 lb
Price: 99 gp 
UID
UNI_WYR_Thiefling_BaldursGateStoneUUID
dc3d793e-c605-4016-9753-27d1c2da4b2c
Where to find
Can be bought from Mattis.