My friends and I booked a tour in BA through Trip Planner-Travel Agent: Lic. Noelia Delpech
PARTIR VIAJES E.V.T.
PHONE: (0054) 11 4515 1888
ADRESS: Cordoba 679, 1er piso
Ciudad de Buenos Aires C1054AAF
We visited mid November.
The tour guide they booked for us for the Iguazu trip took us to a nice, large souvenir shop that also sold jewelry and loose stones. Turns out the stones we bought were synthetic and worthless after a jeweler in San Francisco analyzed them and even had their jeweler friends from Brazil analyze them.
The two stores I have purchases from the days of my trip in Iguazu are AKIABARA C AUT BS AS CAP FED or RAICES PRTO IGUAZU MISIONES. Either one could be the souvenir shop. Beware and don't buy jewelry there!