I have to say that I'm LOVING Giada in Italy. The Amalfi Coast is one of my bucket list places, and I love watching Giada explore her grandparent's old stomping grounds. The food looks delicious (for the most part), and I love the house they're staying in (on Sunday's episode, there were a bunch of family pictures on a table, so I wonder if that is a family home). And I absolutely covet those copper pots she's been using in this series, although I can imagine they would be a pain to clean.
Giada's mother has been in this series, in the episode where they're at the restaurant with the guy who makes pasta and potatoes (is that what it was?). She and Giada's stepfather were at the table with Jade. I've never heard her talk publicly about her father, and actually would be surprised if she ever did (although it would be very brave of her, if the stories are true).
I have to laugh at the thought of Jade somehow living a "lesser" lifestyle with her father because he makes a measly 15 million/year compared to Giada's 20 million.