ALTMANN
Jewellery dealer — Paris
ALTMANNBook an appointment
Tiaras & diadems

Sell a tiara

A diamond tiara — Victorian, Belle Époque, Edwardian, Art Deco — complete with its fittings or converted, signed or not: the house examines it in front of you, in London at 100 Hatton Garden or in Paris at 22 rue Drouot, and buys it outright, with same-day payment.

The house of Altmann

The tiara, read by a dealer

No jewel is more British than the tiara, and few have been dismantled so often. A tiara that has kept its frame, its fittings and its fitted case is now rare; so is one whose diamonds are all original. The house knows this market from both sides — it buys at the great sales and has sold there — and places tiaras with collectors and the trade in Europe. It reads the piece before the name: the metal, the cut of the diamonds, the completeness, the condition, the design; then, if there is one, the signature and the provenance.

What we look for

The tiaras we buy

Complimentary first opinion on photographs, firm offer, same-day payment.

Diamond tiaras

Old-cut diamonds in platinum or silver-topped gold, from the simple bandeau to the great fringe and scroll tiaras.

Belle Époque and Edwardian

Garlands, bows, laurel leaves and lace-like openwork in platinum, 1890–1914. Belle Époque and Edwardian jewellery.

Victorian tiaras

Silver-topped gold, old mine and old European cuts, floral and star motifs, often convertible into brooches and a necklace.

Art Deco bandeaux

The low bandeaux of the 1920s, geometric, in platinum and diamonds, sometimes with onyx or calibré stones. Art Deco jewellery.

Convertible tiaras with their fittings

Frame, comb, necklace and brooch fittings, fitted case: a complete set is worth markedly more.

Signed tiaras

Cartier, Boucheron, Chaumet, Garrard, Hennell and the great houses — signed or attributed, with or without papers.

Before the appointment

A photograph is enough to begin

Send us photographs of the tiara, its fittings and its case: we tell you what it is, then we arrange an appointment in London, in Paris, or where the piece is kept.

I

Photograph

The tiara from the front and from the back, in daylight; the frame and fittings; any marks or signature; the fitted case and any papers, portraits or old invoices.

II

Send

By WhatsApp on +33 7 81 11 49 29, or by e-mail. You receive a first opinion within 24 hours, complimentary and without obligation.

III

The appointment

At 100 Hatton Garden in London or 22 rue Drouot in Paris, by appointment — or at your home or your bank, where a tiara is often kept. The firm offer is made on the piece itself; payment follows agreement, the same day.

Send a photograph

Your photographs are neither published nor passed on. Remote appraisal, in detail · Selling from the UK and Europe

Appraisal

What gives a tiara its value

We look at these six points in front of you, then we make a firm offer.

Completeness

Frame, comb, fittings and fitted case; a tiara that still converts into a necklace or brooches is worth more than its parts.

The diamonds

Old mine, old European and cushion cuts, their weight, colour and clarity, read one by one in the setting; replaced stones are noted.

Metal and period

Silver-topped gold for the Victorian years, platinum from about 1900, geometric platinum in the 1920s: the metal dates the piece.

Condition

Original stones and fittings, no later repairs or re-setting: that is what is paid for. Have nothing done before the opinion.

Design and maker

A signature — Cartier, Boucheron, Chaumet, Garrard — raises the value; an unsigned tiara of fine design and workmanship is bought for what it is.

Provenance

Family papers, portraits, invoices, an old sale catalogue: a tiara with its history is read differently, and the house keeps that history confidential.

Frequently asked questions

Selling a tiara

Do you buy tiaras?

Yes. Diamond tiaras of every period — Victorian, Belle Époque, Edwardian, Art Deco — complete or converted, signed or not, in London, in Paris, or where the piece is kept.

My tiara has lost its frame and its case. Does that matter?

It lowers the value without preventing the sale: the diamonds, the design and the condition are read for what they are. Tell us what is missing; the first opinion takes it into account.

The tiara converts into a necklace and brooches. Is that worth more?

Yes, when the fittings are present and original. A complete convertible set with its fitted case is sought after.

Some stones have been replaced. Can it still be sold?

Yes. Replaced stones and later repairs are noted and reflected in the offer; the house tells you frankly what it sees.

The tiara is kept in a bank vault. Must I bring it?

No. For a tiara or a collection the appointment can be held where the piece is, in London and by arrangement, once the first opinion has been given on photographs.

Can I sell a tiara in London?

Yes. The house receives in London by appointment at its office, 100 Hatton Garden, EC1N 8NX, in the jewellery quarter. Write first by WhatsApp or e-mail with photographs; the appointment is fixed around the house's visits.

Which documents do I need?

A passport or identity card — French law requires a dealer to record every purchase and the identity of the seller — and whatever you have on the piece: certificate, invoice, earlier valuation, auction catalogue entry, box. None of these is essential, except your identity document. Family papers, portraits and old catalogues are welcome: they are part of the piece's history.

Is payment immediate?

Yes. Once agreement is reached, payment is made the same day, by bank transfer, whatever the amount — with no fees or commission.

Key facts — October 2026

What to know before the appointment

Verifiable facts, reviewed in October 2026. For a specific case, the appointment settles the matter.

Fittings and case

A tiara was usually sold with a frame, a comb and, often, fittings that turn it into a necklace or brooches, all in a fitted case. Their presence raises the value; their absence does not prevent a sale.

Metal dates the piece

Victorian tiaras (1837–1901) are typically silver-topped gold; platinum appears around 1900 and carries no British hallmark before 1975.

No cash, a register

A seller is paid by bank transfer or cheque: French law does not allow cash for this trade. Expect a dated purchase document, and nothing deducted from the figure agreed. French law requires a dealer in precious objects to record each purchase and the identity of the seller. Bring a passport or identity card: it protects you as much as us.

By appointment

Show us the tiara

Complimentary and confidential first opinion within 24 hours; then an appointment in London, in Paris, or where the piece is kept.

Request an opinion+33 7 81 11 49 29
Book an appointment