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Repair Windows errors before they cause bigger problemsFix Now →Scan for outdated or missing drivers - takes under a minuteDriver Scan →Clear out junk files and repair common Windows errorsFree Scan →The Greville Emerald Kokoshnik has the highest published estimate in a 2026 ranking of British royal wedding tiaras: £10 million to £13 million. Queen Mary’s Fringe Tiara ranks second at £5 million to £9 million. These are expert estimates, not official Royal Collection appraisals or confirmed sale prices, and the ranking covers five wedding tiaras rather than every tiara associated with the Royal Family.
How the ranking and estimates should be read
The order below follows a 2026 Marie Claire feature, which presents five royal wedding tiaras and estimates attributed to Justin Daughters, managing director and antique-jewelry expert at Berganza. It is a published expert ranking, not a definitive valuation of the full royal collection. The ranges for ranks three through five overlap, so their order is the feature’s ranking rather than a mathematically certain result across every possible valuation.
A separate 2021 study by Money.co.uk used Steven Stone diamond experts to estimate values for three recently worn royal wedding tiaras. It placed the Greville at £10 million, the Fringe at £5 million and the Diamond Bandeau at £2 million. Those figures were estimates, not official appraisals or actual insurance premiums; Money.co.uk separately considered insurance costs. The study’s method is described by Steven Stone and in Money.co.uk’s report.
| Rank in 2026 feature | Tiara | 2026 estimated value | 2021 Steven Stone estimate |
|---|---|---|---|
| 1 | Greville Emerald Kokoshnik | £10 million–£13 million | £10 million |
| 2 | Queen Mary’s Fringe Tiara | £5 million–£9 million | £5 million |
| 3 | Queen Mary’s Diamond Bandeau | £2 million–£5 million | £2 million |
| 4 | Meander Tiara | £2 million–£4 million | not stated (2021 study valued three tiaras) |
| 5 | Cartier Halo Tiara | £1 million–£2.5 million | not stated (2021 study valued three tiaras) |
1. Greville Emerald Kokoshnik — estimated £10 million to £13 million
Boucheron made the kokoshnik in 1919 for society hostess Dame Margaret Greville. She left her jewels to the Queen Mother, and the tiara later entered Queen Elizabeth II’s collection. Princess Eugenie wore it at her 2018 wedding; Queen Camilla wore it at a Diplomatic Corps reception in 2025.
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The 2026 estimate, attributed to Daughters, is £10 million to £13 million. He points to the quality of the stones, workmanship and royal provenance. The central cabochon emerald is reported as 93.7 carats. Accounts differ on how to count the smaller emeralds, so no total stone count is given here.
2. Queen Mary’s Fringe Tiara — estimated £5 million to £9 million
Garrard made the tiara in 1919 using diamonds from a necklace presented to Queen Mary in 1893. Queen Elizabeth II wore it at her 1947 wedding to Prince Philip, and Princess Beatrice wore it at her 2020 wedding.
The 2026 feature puts its estimated value at £5 million to £9 million, citing the antique diamonds, craftsmanship and provenance. The feature also reports that the tiara broke shortly before Elizabeth’s wedding and had to be repaired.
Rank #2
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3. Queen Mary’s Diamond Bandeau — estimated £2 million to £5 million
The Royal Collection Trust records that this diamond-set platinum bandeau was made for Queen Mary in 1932. It consists of eleven flexible geometric sections and has a detachable central brooch set with ten diamonds. Queen Elizabeth II lent it to the Duchess of Sussex, who wore it at her 2018 wedding. The Trust’s collection record documents its construction and history.
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4. Meander Tiara — estimated £2 million to £4 million
Zara Tindall wore the Meander Tiara at her 2011 wedding. The 2026 feature traces its family history through Princess Anne, Queen Elizabeth and Princess Alice of Greece and Denmark. It describes a Greek-key or meander design incorporating laurel-wreath and honeysuckle motifs.
Rank #3
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Daughters’ estimate is £2 million to £4 million. The feature says its value reflects provenance, proportions and the rarity of its design, not simply gemstone size.
5. Cartier Halo Tiara — estimated £1 million to £2.5 million
Catherine, Princess of Wales, wore the Cartier Halo at her 2011 wedding. The 2026 feature says Cartier created it in 1936 and describes it as set with 739 brilliant-cut diamonds and 149 baguette-cut diamonds. It traces the tiara from George VI’s purchase for the then Duchess of York to Queen Elizabeth II and Princess Margaret.
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Rank #4
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Why a tiara’s value is more than its diamonds
Gemstones matter, but they do not explain the estimates on their own. Daughters says that “the primary factors determining the gem’s value are not limited to the diamonds and precious stones composing the tiara.” His other cited considerations include rarity, workmanship and the connection to the royal occasion for which a piece was worn. Provenance and the history of ownership can distinguish two objects with comparable materials.
Estimates also depend on what is being valued and why. A market estimate, an insurance valuation and a documented historical cost are different kinds of figures; they should not be treated as interchangeable. The Royal Household explains that the King holds the Crown Jewels and most Royal Collection art treasures as Sovereign on behalf of the nation and cannot sell them. That custody arrangement does not provide an official current market appraisal for each object.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Notable royal tiaras without comparable current estimates
Vladimir Tiara
The Royal Collection Trust says the Vladimir Tiara was made for Grand Duchess Vladimir around 1874 and sold by her daughter to Queen Mary in 1921. Its pendant emeralds can be removed or replaced with pearls. The Trust’s collection record documents the object, but the sources cited here do not establish a current value for it.
Best Value
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Diamond Diadem
Made for George IV’s 1821 coronation, the Diamond Diadem is set with 1,333 diamonds. The Royal Collection Trust records an original cost of £8,216, including an £800 diamond-hire charge. That is a historical bill, not a modern valuation. Details appear in the Trust’s collection record.
Poltimore Tiara
The Poltimore Tiara, worn by Princess Margaret including at her wedding, has a genuine auction reference: Christie’s gave it a £150,000 to £200,000 estimate in 2006. It could also be worn as a diamond fringe necklace and as scroll brooches. This historic auction estimate is not directly comparable to the later expert estimates for tiaras in the royal collection. See Christie’s 2006 lot information.
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