Jewels of Monaco's National Day 2018

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The Grimaldis of Monaco celebrated the principality's National Day on Monday, and the ladies of the family brought out some lovely jewels for both the day and evening celebrations.

Princess Theodora Is Engaged!

Princess Theodora of Greece and Denmark, ca. 2014 (Milos Bicanski/Getty Images)

On Friday, the former Greek royal family announced some exciting news: Princess Theodora of Greece and Denmark is engaged to be married!

The Daily Diadem: The Bains de Mer Tiara

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Princess Grace of Monaco wears the Bains de Mer Tiara at the gala held the night before her religious wedding ceremony, April 1956; more on the tiara here, and more on the party over here!

The Most Expensive Jewels from the Bourbon-Parma Auction

DANIEL LEAL-OLIVAS/AFP/Getty Images

On Wednesday, Sotheby's in Geneva sold a hundred lots of jewelry from the House of Bourbon-Parma, including impeccable pieces with eye-popping royal provenance. Here's a look at the ten highest-grossing lots from the sale!

The Daily Diadem: The Dutch Emerald Parure Tiara

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Annemarie Gualtherie van Weezel wears the pearl setting of the Dutch Emerald Parure Tiara for her wedding to Prince Carlos Hugo of Bourbon-Parma in Brussels, November 2010; more on the fascinating history of the tiara over here!