Jewels of Monaco's National Day 2019

Pascal Le Segretain/Getty Images

Monaco celebrated its National Day on Tuesday with a day full of festivities, and we've got a look at all the Grimaldi jewels on display!

The Daily Diadem: The Cartier Pearl Drop Tiara

Andreas Rentz/Getty Images

Princess Caroline of Monaco wears her grandmother's Cartier Pearl Drop Tiara with a diamond fringe necklace for the pre-wedding gala in Luxembourg, October 2012; more on the tiara here and the necklace here!

Grace Kelly's Engagement Rings

Prince Rainier, Grace Kelly, and her parents pose during a press conference announcing Grace and Rainier's engagement, January 1956 (Pictorial Press Ltd/Alamy)

As Monaco celebrates its National Day today, I've got a closer look at two of the most intriguing jewels from the late Princess Grace's collection: her engagement rings.

The Daily Diadem: The Bains de Mer Tiara

Pictorial Press Ltd/Alamy 

Princess Grace of Monaco wears the Bains de Mer Tiara (and her diamond festoon necklace) as she dances with Prince Rainier at the Imperial Ball, held at the Astor Hotel in New York, December 1958; more on the tiara here and the necklace here!

The Countess of Craven's Rubies Sold

Christie's

Last week, we talked about the jewels once owned by the late Lady Granard, several of which were up for sale at Christie's. That same sale also included numerous other intriguing pieces of jewelry, including this diamond and ruby necklace -- which may particularly fascinating royal legacy.