Royal Wedding Jewels: Jean-Christophe, Prince Napoleon and Countess Olympia of Arco-Zinneberg

FRANCOIS GUILLOT/AFP via Getty Images

Royals from all over Europe gathered in Paris for something special this weekend: the wedding of a member of one of France's former reigning families to a descendant of German, Italian, and Austrian royalty.

The Daily Diadem: Queen Mary's Honeysuckle Tiara

Gareth Cattermole/Getty Images

The Duchess of Gloucester wears Queen Mary's Honeysuckle Tiara for the Guildhall banquet during the Norwegian state visit, October 2005; more on the tiara over here!

Princess Salimah's Emeralds

Tristan Fewings/Getty Images for Sotheby's

The leaves are officially turning outside the office window here at TCJ headquarters, but I couldn't resist featuring a little green this weekend -- emeralds, that is!

The Daily Diadem: The Diamond Daisy Bandeau

Gareth Cattermole/Getty Images

Crown Princess Mette-Marit of Norway wears the Diamond Daisy Bandeau for the Guildhall banquet during the British state visit, October 2005; more on the tiara here!

The Noor-ol-Ain Tiara

Mohammed Reza Pahlavi and Farah Diba on their wedding day, December 1959 (AFP via Getty Images)

The Treasury of National Jewels in Iran holds a stunning collection of gems and jewels from the Persian imperial past. Today, we've got a closer look at one of the nation's most important treasures: the Noor-ol-Ain Tiara.

The Daily Diadem: Queen Josefina's Diamond Tiara

Gareth Cattermole/Getty Images

Queen Sonja of Norway wears Queen Josefina's Diamond Tiara at the Guildhall banquet during the British state visit, October 2005; more on the tiara over here!

This Week in Royal Jewels: October 11-17

October 11-17, 2019

It's been an absolutely banner week for royal jewels, and we've got one of the biggest reviews we've ever seen here at TCJ! Don't forget to vote for your favorites in the poll below!

Carlos Alvarez/Getty Images

35. For the Spanish royal family's arrival in Oviedo on Thursday for the Princess of Asturias award festivities, Queen Letizia wore a pair of delicate black and white earrings.

The Daily Diadem: The Norwegian Amethyst Tiara

MATT DUNHAM/AFP/Getty Images

Crown Princess Mette-Marit of Norway wears the family's amethyst tiara and coordinating jewels for a state banquet at Buckingham Palace during the British state visit, October 2005; more on the amethysts over here!

Major Royal Sparkle in Luxembourg

Cour Grand-Ducale

The King and Queen of the Belgians embarked on a state visit to their cousins in Luxembourg on Tuesday, and we've got plenty of jewels (including tiaras!) to enjoy from the trip so far.

The Daily Diadem: The Delhi Durbar Tiara

MATT DUNHAM/AFP/Getty Images

The Duchess of Cornwall wears the Delhi Durbar Tiara for a state banquet at Buckingham Palace during the Norwegian state visit, October 2005; more on the tiara here!

Royal Tour Update: William and Kate in Pakistan

Chris Jackson/Getty Images

What an incredibly busy royal week! Today, we've got a recap for you of the first part of the Duke and Duchess of Cambridge's tour of Pakistan, including some lovely local jewels.

The Daily Diadem: The Norwegian Emerald Parure Tiara

MATT DUNHAM/AFP/Getty Images

Queen Sonja wears the Norwegian Emerald Parure Tiara and its coordinating jewels for a state banquet at Buckingham Palace during the British state visit, October 2005; see more of the important heirloom parure over here!

State Visit Jewels: Queen Maxima in India

PRAKASH SINGH/AFP via Getty Images

October means state visit season has begun, and on Monday, King Willem-Alexander and Queen Maxima of the Netherlands began a five-day visit to India.

Jewels of the State Opening of Parliament 2019

VICTORIA JONES/POOL/AFP via Getty Images

Today in London, Queen Elizabeth II of the United Kingdom opened parliament for the first time since 2017 -- and in grand jewels for the first time since 2016. But there's been a big change, one I've suspected was coming for some time...

The Daily Diadem: The Vladimir Tiara

MATT DUNHAM/AFP/Getty Images

Queen Elizabeth II of the United Kingdom wears the Vladimir Tiara with the Gloucester Pendant Earrings, Queen Victoria's Golden Jubilee Necklace, and the Dorset Bow Brooch for a state banquet at Buckingham Palace during the Norwegian state visit, October 2005; more on the tiara here!

Note: A post on today's jewels from the State Opening of Parliament will be up in a few hours!

The Top Ten: Royal Opals

FREDRIK VON ERICHSEN/AFP/Getty Images

October babies, let's face it: you've got a pretty cool birthstone. Opals come in a variety of colors, and often they look like they're literally glowing from within. Most of the world's opals are mined in Australia, so it's no surprise that it's also the country's national gemstone. Royals have been attracted to opals for centuries, from the "Burning of Troy" opal given by Napoleon to Josephine all the way to the Duchess of Sussex's engagement earrings, though many royal collections lack major opal pieces. Today, we're running down ten of the most intriguing opals in royal collections past and present.

The Daily Diadem: The Dutch Ears of Wheat Tiara

Albert Nieboer/DPA Picture Alliance Archive/Alamy

Princess Aimee of Orange-Nassau wears the Dutch Ears of Wheat Tiara on her wedding day, October 2005; more on the tiara here!

Spanish National Day Jewels 2019

OSCAR DEL POZO/AFP via Getty Images

On Saturday, Spain celebrated its National Day, and the royal family was on hand to join in the festivities.

The Daily Diadem: The Habsburg Fringe Tiara

Michel Porro/Getty Images

Hereditary Princess Sophie of Liechtenstein wears the Habsburg Fringe Tiara for a gala dinner before the Dutch royal inauguration, April 2013; find out how the tiara got from the Habsburg court to the tiny principality here!

Queen Letizia's Tiaras

Jeff Spicer/Getty Images

Today is Spain's National Day, and to mark the occasion, we've got a sparkling roundup of all the tiaras worn by the lovely Queen Letizia. Enjoy!

The Daily Diadem: The Noor-ol-Ain Tiara

AFP/Getty Images

Farah Pahlavi, then Empress of Iran, wears the Noor-ol-Ain Tiara in Persepolis, May 1971; more on this fantastic tiara here!

This Week in Royal Jewels: October 4-10

October 4-10, 2019

From galas to games, we've got a whole lot of royal glitter in our roundup this week! Don't forget to vote for your favorites in the poll below!

PLEASE NOTE: There's currently an issue with embedded images from Getty on their end. (Using embedded images when necessary is part of my commitment to respecting copyright permissions by using photos legally on this website.) I've contacted them about the issue, and I'm hopeful that they'll resolve it quickly. Thanks for your patience in the meantime.

Carlos Alvarez/Getty Images

20. In Madrid, Queen Letizia of Spain wore simple stud earrings and her gold ring for audiences at Zarzuela Palace on Tuesday.

The Daily Diadem: Princess Mako's Diamond Tiara

TORU YAMANAKA/AFP/Getty Images

Princess Mako of Akishino wears her diamond tiara and accompanying jewels for a visit to the Imperial Palace to mark her twentieth birthday, October 2011; more on the Akishino tiaras here!

Dazzling Danish Jewels in Paris

LUDOVIC MARIN/POOL/AFP via Getty Images

Crown Prince Frederik and Crown Princess Mary of Denmark headed to Paris for an official visit this week, and we've got a look at all of the sparkling jewels worn by the royals for the trip.

PLEASE NOTE: There's currently an issue with embedded images from Getty on their end. (Using embedded images when necessary is part of my commitment to respecting copyright permissions by using photos legally on this website.) I've contacted them about the issue, and I'm hopeful that they'll resolve it quickly. Thanks for your patience in the meantime.

The Daily Diadem: Queen Saleha's Diamond Tiara

JIMIN LAI/AFP/Getty Images

Queen Saleha of Brunei wears a large diamond tiara at the wedding of her son, Crown Prince Billah, September 2004; see more of her jewels here!

Bold Jewelry for Queen Maxima

ROBIN UTRECHT/ANP/AFP via Getty Images

For a series of outings in the Netherlands this week, Queen Maxima has worn a range of jewelry -- from the super bold to the completely minimal.

The Daily Diadem: Queen Louise's Diamond Tiara

Keystone Pictures USA/Alamy

Princess Margaretha of Sweden wears Queen Louise's Diamond Tiara for a state banquet in honor of Queen Juliana of the Netherlands in Stockholm, May 1957; more on the tiara here!

Grimaldi Glitter at the Secret Games Party

PLS Pool/Getty Images

The Grimaldis were out and about in Monaco for a glittering gala event on Saturday, and we've got a look at the best jewels of the evening.

The Daily Diadem: The Japanese Crown Princely Wedding Tiara

AFP/Getty Images

Crown Princess (later Empress) Michiko of Japan wears the Japanese Crown Princely Wedding Tiara in a portrait with her husband, the future Emperor Akihito, June 1971; more on the tiara here!

The Court Jeweller Book Club: October 2019

Image: The Court Jeweller

It's time for our monthly book club post, magpies! This month, we're switching things up a bit...

The Daily Diadem: The Hesse Strawberry Leaf Tiara

Franz Backoften/Wikimedia Commons

Grand Duchess Alice of Hesse and by Rhine wears the Hesse Strawberry Leaf Tiara in a portrait, May 1871; more on the fascinating tiara here!

The Australian Opal Spray Brooch

Heathcliff O'Malley - WPA Pool/Getty Images

A few weeks ago, I received a reader email inquiring about this brooch from the Queen's collection. Because it's set with October's birthstone, I decided to wait until this week to feature it. Here's some background information on the Australian Opal Spray Brooch.

The Daily Diadem: The Emerald Wreath Bandeau

Wikimedia Commons

Empress Augusta Viktoria of Germany (with her daughter, Princess Viktoria Luise) wears the Emerald Wreath Bandeau as a traditional tiara in a portrait by Ernst Sandau, ca. 1912; more on the bandeau over here!

The Harewood Fringe Tiara

Princess Mary wears her diamond fringe tiara, ca. 1922

With a recent appearance (as a replica) in the new Downton Abbey film, there's been a lot of chatter about the diamond fringe tiara that belonged to Princess Mary, Princess Royal and Countess of Harewood. Today, we've got a look at this tiara's history.

The Daily Diadem: The Bonaparte Olive Wreath Tiara

Wikimedia Commons

Princess Marie Bonaparte wears the Bonaparte Olive Wreath Tiara in a portrait taken ca. 1907, the year of her marriage to Prince George of Greece and Denmark; more on the tiara here!

This Week in Royal Jewels: September 27-October 3

September 27-October 3, 2019

We've got lots of royal sparkle to enjoy this week! Don't forget to vote for your favorites in the poll below!

Carlos Alvarez/Getty Images

25. On Thursday, Queen Letizia of Spain wore her Skyline earrings from Gold and Roses for the inauguration of the 14th International Seminar of Language and Journalism in San Millan de la Cogolla.

The Daily Diadem: The Danish Ruby Parure Tiara

STF/AFP/Getty Images

Queen Ingrid of Denmark wears the Danish Ruby Parure Tiara with its accompanying jewels for a portrait taken at Amalienborg Palace in Copenhagen, ca. 1960s; more on this fabulous heirloom here!

Royal Tour Update: Meghan and Harry in Johannesburg

Facundo Arrizabalaga - Pool/Getty Images

The Duke and Duchess of Sussex continued their visit to Africa this week, and we saw the Duchess out and about for several engagements in Johannesburg. Here's a look at the jewels she chose for the second half of the tour. (Don't miss our recap of last week's engagements!)

The Daily Diadem: The Diamond Vine Leaves Tiara

LISE ASERUD/AFP/Getty Images

Grand Duchess Maria Teresa of Luxembourg wears the Diamond Vine Leaves Tiara for a gala dinner celebrating the 70th birthday of King Harald V of Norway in Oslo, February 2007; more on this classic sparkler over here!

Parliamentary Jewels in Copenhagen

NIELS CHRISTIAN VILMANN/AFP/Getty Images

Parliament season continued this week in Europe, with the Danish royals attending the annual opening of the parliamentary session in Copenhagen.

The Daily Diadem: The Iveagh Tiara

ALASTAIR GRANT/AFP/Getty Images

The Duchess of Gloucester wears the Iveagh Tiara for a Guildhall banquet in London during the Chinese state visit, October 1999; more on the tiara here!

Empress Carlota's Emeralds Found

Detail from Albert Grafle's portrait of Charlotte of Belgium as Empress of Mexico, ca. 1860s (Wikimedia Commons)

I've received numerous excited messages from readers about the recent royal jewel news out of Switzerland: the "discovery" of a suite of emerald and diamond jewelry that belonged to Princess Charlotte of Belgium, who is perhaps better known to history as Empress Carlota of Mexico.