Given to Elizabeth Taylor by Richard Burton, this ring features a 33.19-carat Asscher-cut diamond. Estimated value: Over $8.8 million.

Elizabeth Taylor's Krupp Diamond Ring

Beyoncé's engagement ring from Jay-Z boasts an 18-carat emerald-cut diamond. Estimated value: Around $5 million.

Beyoncé's Lorraine Schwartz Diamond Ring

Kim Kardashian's ring from Kanye West features a 15-carat D-flawless cushion-cut diamond. Estimated value: Approximately $4.5 million.

Kim Kardashian's Engagement Ring

Grace Kelly's Cartier Engagement Ring

Prince Rainier III of Monaco gave Grace Kelly a 10.47-carat emerald-cut diamond ring. Estimated value: Over $4.06 million.

Paris Hilton's Engagement Ring

Paris Hilton received a 20-carat pear-shaped diamond engagement ring. Estimated value: Around $2 million.

Mariah Carey's Jacob & Co. Ring

Mariah Carey's ring from James Packer has a 35-carat emerald-cut diamond. Estimated value: Approximately $10 million.

Jennifer Lopez's Engagement Ring

Ben Affleck proposed to Jennifer Lopez with a 6.1-carat pink diamond ring. Estimated value: Over $1.2 million.

Jacqueline Kennedy Onassis's Engagement Ring

Given by Aristotle Onassis, this ring has a 40.42-carat marquise-cut diamond. Estimated value: Around $2.6 million.