You’ve probably heard this name a lot recently: Lorraine Schwartz. She’s the jewelry designer behind Kim Kardashian‘s $2 million 20.5-carat diamond engagement ring, and big rocks are her business. The New York jeweler (shown inset, below) is the third generation to run the family’s jewelry company, and she is known for her extravagant pieces. Halle Berry was one of the first celebrities to wear Schwartz on the red carpet at the SAG Awards in 2002, and ever since her fans include Beyonce, Heidi Klum, Angelina Jolie, and Blake Lively, as well as Kim Kardashian, of course. Click “See the Photos” for a roundup of the most extravagant pieces by Schwartz to ever hit the red carpet.