The 34-year-old businesswoman shared a sweet photo of her husband, Jared Kushner, and their 2-year-old son, Joseph, fawning over newborn baby Theodore James, whom the family welcomed on Easter Sunday, March 27.
The couple celebrated their newborn's bris in Midtown Manhattan on Sunday, The Daily Mail reports. As is customary in Jewish traditions, Theo was circumcised in a ceremony eight days after his birth. Ivanka's mother, Ivana Trump, was also in attendance, though there's no word if Donald Trump turned up.
Ivanka converted to Judaism before she and Jared wed in 2009 and opened up about her family's religious beliefs to Vogue last year.
"We're pretty observant, more than some, less than others," she said. "I just feel like it's such an intimate thing for us. It's been such a great life decision for me. I am very modern, but I'm also a very traditional person...I really find that with Judaism, it creates an amazing blueprint for family connectivity."