The Danish royal family celebrated Crown Prince Frederik's 50th birthday in style, with a gala dinner held at Christiansborg Palace in Copenhagen on May 26. While the black tie affair was full of emotion thanks to Crown Princess Mary's loved-up speech that left the future King in tears, we also couldn't help but go jewel-spotting to check out the most amazing tiaras of the night. Scroll through to see 12 jaw-dropping looks from the party.Princess Olympia of Greece made her gala debut in a fringe tiara often worn by her mother, Crown Princess Marie-Chantal. The 21-year-old was among the new generation of royals to attend, along with her brother Prince Achileas-Andreas and Prince Joachim of Denmark's model son Prince Nikolai.Photo: Getty Images
Crown Princess Mary of Denmark, wife of guest of honour Crown Prince Frederik, was stunning in the Diamond, Ruby and Spinel Necklace tiara. The tiara, thought to be recently-acquired, and which the Crown Princess only started wearing a few years ago, dates back to the early 20th century. Photo: Getty Images
Queen Mathilde of Belgium sparkled in her go-to tiara, the Laurel Wreath. The beautiful piece was made in 1912 and boasts more than 600 diamonds.Photo: Getty Images
Future queen Crown Princess Victoria of Sweden wore one of her favourite looks, the 19th century Baden Fringe tiara. The headpiece, which has 47 diamond "sunrays", can also be worn as a necklace. Photo: Getty Images
Princess Benedikte, sister of both Queen Margrethe of Denmark and Queen Anne-Marie of Greece, also wore a fringe style tiara. The royal's diadem is the Sayn-Wittgenstein-Berleburg fringe tiara, made by Koch in 1905.Photo: Getty Images
Princess Marie of Denmark, who is married to Queen Margrethe's younger son Prince Joachim, wore a glittering blue gown that twinkled nearly as much as her jewelled headpiece, the Diamond Floral tiara.Photo: Getty Images
Prince Joachim's ex-wife Alexandra, Countess of Frederiksborg, mother of Burberry model Prince Nikolai, also opted for some serious bling. The mom of two wore the Alexandrine Drop tiara, a nuptial gift from her ex-mother-in-law Queen Margrethe that she had also worn on her wedding day. Photo: Getty Images
Guest of honour Crown Prince Frederik's mother Queen Margrethe wore something that we don't often see – a bold gold tiara. The Naasut parure was a gift from Greenland in 2012 for the Danish monarch's 40th anniversary on the throne.Photo: Getty Images
After wearing the enormous 19th century Stuart tiara in Luxembourg days earlier, Queen Maxima of the Netherlands once again impressed with the Dutch Diamond Bandeau, which features 34 giant-sized gems.Photo: Getty Images
A crown-like tiara fit for a queen... or a Grand Duchess! Grand Duchess Maria Teresa of Luxembourg wore the heirloom pearl-accented Chaumet tiara, which can also be worn as a choker.Photo: Getty Images
Princess Theodora of Greece chose the Antique Corsage tiara to set off her pink gown. The royal, who is also an actress who goes by the stage name Theodora Greece, looked beautiful in the elaborate diamond and pearl headpiece.Photo: Getty Images
Queen Silvia of Sweden seemed to have matched her dress with her beautiful headpiece, the Edward VII tiara featuring diamonds and rubies. The tiara dates back to the early 1900s.Photo: Getty Images