In 1988, Bittar began to design his own line of jewelry. He bought his first block of Lucite in 1990 and holed up in his apartment figuring out how to hand carve it into the jewelry vision he had. Subsequent collaborations include stylist and costume designer
Patricia Field for
Sex and the City, the
Cooper-Hewitt Museum, London's
Victoria & Albert Museum,
Estee Lauder,
Michael Kors,
Jason Wu,
Jeremy Scott,
Mugler,
Phillip Lim and
Prabal Gurung. In 2004, Bittar opened his first boutique on Broome St. and went on to open a total of 15 stores in the US. and in 2015, they sold to
Carolee LLC, the jewelry arm of
Brooks Brothers. After a five-year absence, Bittar reacquired his eponymous brand from
Brooks Brothers after they filed for bankruptcy in the fall of 2020. Bittar is again the full owner of his brand, which relaunched in the fall of 2021 with expanded product categories including accessories and handbags. New brick and mortar boutiques were opened in
New York City designed by scenic designer
Scott Pask. Bittar's creations have been worn by celebrities including Beyoncé, Dua Lipa, Julia Fox, Michelle Obama, Iris Apfel, Lady Gaga, Megan Thee Stallion, FKA Twigs, Tyla, Halsey, Cher, Madonna and Lola Young all choosing to repeatedly wear Bittar's unique designs. == Awards and industry accolades ==