History of Famous Jewels and Collections: Re: Princess Maria Gabriella of Savoy Tiara / Necklace

The seller must be Princess Marie Gabriella as she sold before the Count of Flanders Leuchtenberg tiara and her Belgian Great grand Mother small pearl tiara.
I wonder if Princess Marie Beatrice sold her jewels . Is she such in money need ?

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Princess Maria Gabriella of Savoy wore the tiara like a necklace

MARIA-GABRIELLE PRCSS - 2003 WEDDING ELISABETH BALKANY DAUGHTER - PRE-WEDDING PARTY VENICE

Necklace and earrings

Maria Vittoria of Savoy
Perhaps it's
"an engraving showing Maria Vittoria wearing the adornment but set with emeralds. Whether this is the creator’s fantasy, or the jewel's versatility, it is a mystery that remains unsolved." sotheby's