Lohan arrived for the 10 a.m. PT hearing at Los Angeles Superior Court with a tight black top, wide-legged blue pants, a cream scarf and her hair pulled up. Lohan's estranged father, Michael Lohan, arrived before her, shortly after 9 a.m. PT.
The 24-year-old actress, who turned down an earlier plea deal regarding the necklace case, had sought to get the Good Friday hearing pushed back, citing religious beliefs. The judge apparently was not persuaded by Lohan's attempt to put off the hearing.
Lohan has denied any wrongdoing. She has maintained that the store let her borrow the necklace and her assistant returned it to police. She was arraigned in February on one felony grand theft charge.
Lohan has been to jail three times in the past three years for DUI, drug possession and probation violations.
Amid her legal troubles, the actress is trying to rebuild her career. This week, she secured a role in "Gotti: Three Generations," an upcoming movie about mob boss John Gotti that will star John Travolta. She posed alongside the film's cast and the Gotti family at a press conference in New York last week.
The "Mean Girls" star acknowledged last month that rebuilding her reputation in Hollywood won't be easy.
"I miss being on set," she said in an interview with the entertainment news show "Extra." "I know there is going to be a lot of steps I'll have to go through to prove myself again and get the trust from people I respect to work with."
The Associated Press contributed to this report.