The jewels of Princess Mary of Monaco

[LouisFerdinand]

Lady Mary Victoria Douglas-Hamilton married Prince Albert I of Monaco in 1869. For her wedding she received a superb emerald and brilliant bracelet, a diamond brooch in the shape of a thistle, a tiara of 44 large brilliants, and a diamond and pearl tiara. 
The marriage was later annulled in 1880. Did Princess Mary keep the above jewels she had received? Or did they remain in the Grimaldi jewels?