The emeralds jewels (brooch, bracelet,pendant) were inherited by princess Esperanza (not by her mother). She herself told me so. The was one of the ween godchild. I remember that Dom Pedro (her husband) added that they had been sent to Brazil at the time in a tin box, in order to avoid taxes.
They were given, by princess Esperanza to her daughter, princess Maria da Gloria, who sold them at auction at Sotheby's in 1981. They were bought then by Gabrielle... And sold again after her death. The brooch has been sold twice since.
However, Ursula is right about the choker. The pendant consisting of an ovale cabochon emerald and a drop is a part of this emerald and diamond choker. I have no idea why this choker is described as being made of sapphires, but it is definitely emeralds. It is mentioned and photographed in the inventory of queen Amelia's jewels after her death (Private papers of the Orléans family, Archives nationales).
As I said already, the emeralds and diamond set given by the countess of Paris to her daughter still exists. I wrote once, a very long time ago (I think it was 1991) that it had been sold by the Comte de Paris to a south american millionaire. I was wrong at the time. I see that error, mentioned all the time when someone writes about that parure. It was sold by the Comte de Paris, but in Europe and it still is in Europe, although it may have been divided.