Neither Princess Diana or Meghan Markle own the the most expensive royal engagement ring. Someone outside the House of Windsor does.

in 1956 Prince Rainer of Monaco proposed to Grace Kelly with a 10.47-carat emerald-cut Cartier engagement ring which is said to have propelled the diamond cut into popularity. The current ...

and Grace Kelly’s engagement ring, which she insisted on wearing in her final film, 1956’s High Society. The house of Cartier has a long history. Its founder, Louis-François, was born to a ...

Bloom proposed with a floral-inspired engagement ring that experts estimate could ... When Prince Rainier III of Monaco proposed to Grace Kelly in 1955, he pulled out a 10.47-carat, emerald ...

The two-time Academy Award winner was joined on the sofa by her co-stars Chiwetel Ejiofor and Leo Woodall. The trio discussed their Valentine's Day plans with the talk show host and even revealed ...

Rachel Brosnahan revealed in an interview with 'Only Natural Diamonds' that she helped now-husband Jason Ralph pick out her ...

Kim Kardashian revealed she'll be passing down the 15-carat ring cushion-cut engagement ring ex Kanye West proposed with back ...

Chloe Grace Moretz showcased her huge ring during a trip in Paris on Sunday, following her rumoured engagement to her girlfriend Kate Harrison. The actress, 27, appeared elated as she left her ...

Kim Kardashian alleged ex-husband Kris Humphries forced her to give up the 18-carat engagement ring that she paid for as part of their 2013 divorce settlement.

This one might be the most famous colored-stone engagement ... ring was designed by celebrity jeweler Lorraine Schwartz. Despite their on-again, off-again relationship, Machine Gun Kelly took ...