in case somebody wants to look it up some FYI
Alexandrine Diamond Drop TiaraThis small diamond tiara, worn by Princess Alexandra on her wedding day in 1995, features tiny teardrop-shaped diamonds suspended en tremblant from its arches. It was made in the early 1900s for Queen Alexandrine of Denmark, who passed the piece on to her son, King Frederik IX, after her death. It was the first tiara worn by Queen Margrethe, who received it as a birthday gift when she turned 18; Margrethe then gave the tiara to her daughter-in-law as a wedding present. Alexandra retained the tiara after her divorce from Prince Joachim.
Baden Palmette TiaraMade by Koch, this diamond tiara was a wedding gift to Princess Luise of Prussia in 1856 from her father, Kaiser Wilhelm I. The romantic piece, whose palmette motifs join to resemble hearts, was given by Luise to her daughter, Queen Victoria of Sweden, and then passed along to Victoria's granddaughter, Queen Ingrid. Queen Margrethe inherited the tiara on her mother's death in 2000.


Crown Princess Mary's Wedding TiaraCrown Princess Mary wore this diamond tiara, a gift from Queen Margrethe and Prince Henrik, on her wedding day in 2004. The piece can also be worn as a necklace, and an extra row of pearls can be affixed to its base.
Diamond Floral TiaraWorn today by Princess Marie, this diamond floral tiara is the property of Queen Margrethe, who received it from her parents, King Frederik IX and Queen Ingrid. The piece dates to the early 1900s; its first owner was Princess Dagmar. Princess Marie wore the tiara on her wedding day in 2008.
Diamond and Turquoise Bandeau TiaraQueen Margrethe inherited this diamond and turquoise floral bandeau from her late mother, Queen Ingrid. The flowers in the tiara are daisies -- appropriate, as Queen Margrethe's name means daisy. Also worn by Princess Theodora of Greece at a concert visit.
Emerald Parure TiaraThe intricate diamond and emerald parure tiara is a part of the Danish crown jewels. Most of the time it can be found on display at Rosenborg Palace. Queen Margrethe wears the piece, but it is not allowed to leave Denmark. The tiara was apparently made in 1840 for Queen Caroline Amalie, wife of King Christian VIII, but some of the emeralds used have supposedly been in the royal family's possession since the early 1700s.
Floral Aigrette TiaraMade in the nineteenth century, this flexible diamond floral tiara was bequeathed to Queen Ingrid in the 1960s by an unknown Danish-American. The tiara can be worn in many different configurations on the head; it can also be split into separate brooches.
Midnight TiaraCrown Princess Mary is the current (and, I believe, exclusive) wearer of this modern tiara. Designed by Charlotte Lynggaard for the Danish tiara exhibition in 2009, it's made of silver, pink gold, diamonds, and moonstones.
Pearl Poiré TiaraThis nineteenth-century diamond and pearl tiara was made for the wedding of Princess Louise of Prussia; her daughter, Queen Lovisa of Sweden, later passed the tiara on to her own daughter, Queen Louise of Denmark. The tiara takes its name from the pear-shaped (poiré) pearls that are suspended en tremblant from the piece's diamond arches.
Princess Ingeborg's Star TiaraGiven to Princess Ingeborg of Denmark by Tsar Nicholas II on her wedding day in 1897. After Princess Ingeborg’s sudden death in 1958, this tiara was inherited by her eldest daughter, Princess Margaretha of Denmark. When she died in 1977, it became the property of her youngest daughter-in-law, Countess Ruth of Rosenborg. The current owner is Countess Jutta of Rosenborg.

Princess Thyra's Sapphire TiaraCurrently owned by Princess Elisabeth, this sapphire and diamond tiara was originally owned by Princess Thyra, who left the piece to her niece, Princess Caroline-Mathilde. Elisabeth, Caroline-Mathilde's daughter, later inherited the tiara, which features large diamond elements with sapphire center stones.
Ruby Parure TiaraThe ruby parure itself was by the future Queen Désirée of Sweden at the coronation of Napoleon in 1804, but this diamond and ruby floral tiara is a newer creation. The piece has become more associated in recent years with Queen Ingrid, who received it as a wedding present. She left the tiara to her grandson, Crown Prince Frederik, whose wife, Crown Princess Mary, now wears it. The tiara has been altered several times during its existence, most recently by Mary. She now wears a slightly smaller version, with detachable pieces that can be worn as hair ornaments or brooches.