- Jewellery
- Private Acquisitions
A private buyer for every important jeweller.
Cartier, Van Cleef & Arpels, Boucheron and beyond — our specialists provide free, confidential valuations and same-day payment, with none of the delay or exposure of a public auction.
- 50+ Years' Combined Experience
- FGA/DGA Gemmology
- Same-Day Payment
- How It Works
A confidential sale in three steps
Photograph
Send clear photographs of your piece — the item itself, any signature or hallmark, and papers if available — by WhatsApp or our enquiry form.
Valuation
Our specialists assess the piece and return a free, no-obligation offer, typically within hours.
Payment
Accept the offer and receive same-day payment by bank transfer or cash, subject to identification.
- Understanding Value
What determines a piece's value
Every category has its own nuances — a signed Art Deco brooch is judged differently to a modern diamond ring — but six factors shape almost every valuation we make.
Designer & Maker
Signed pieces by recognised houses — Cartier, Van Cleef & Arpels, Boucheron — command a premium over unsigned equivalents.
Gemstone Quality
Carat, colour, clarity, and cut all matter — and for coloured stones, origin can significantly affect value.
Period & Rarity
Georgian, Art Deco, and Belle Époque pieces are often rarer and more sought after than later reproductions.
Condition & Alterations
Original, unaltered settings are prized by collectors. Remodelled or resized pieces can see reduced value.
Provenance & Signature
Original boxes, certificates, and maker's marks increase both value and buyer confidence in authenticity.
Hallmarks & Certification
Gold and platinum hallmarks, alongside gemological certificates, support a stronger, more confident valuation.
- Private Valuation Appointments
Submit your jewellery for a confidential valuation
- No fees or commission on private sales
- Response within 24 hours
- Entirely confidential — never publicly listed
- Prefer to talk? Message us on WhatsApp instead
By submitting, you consent to Regent Street Antiques contacting you about this enquiry. See our Privacy Policy.
- The Index
The designers we acquire
- Adler
- Andrew Grima
- Boucheron
- Buccellati
- Bulgari
- Carlo Giuliano
- Cartier
- Chaumet
- David Webb
- Fabergé
- Fortunato Pio Castellani
- Gérard Paris
- Georges L'Enfant
- Graff
- Harry Winston
- Ilias Lalaounis
- JAR (Joel Arthur Rosenthal)
- Jean Schlumberger
- Lorenz Bäumer
- Mauboussin
- Marina B
- Mikimoto
- Oscar Heyman
- Paul Flato
- Raymond Yard
- René Boivin
- Seaman Schepps
- Chaumet
- Suzanne Belperron
- Tiffany & Co.
Periods & Styles
Categories
Don’t see your maker listed? Send photographs regardless our valuers assess pieces well beyond this index. See the full catalogue
- Recently Acquired
A glimpse of recent purchases
Cartier Solitaire Ring
Acquired from a private seller, London
Van Cleef & Arpels Alhambra Necklace
Acquired from an estate, Surrey
Boucheron Serpent Brooch
Acquired from a private collector
What our clients say
“A seamless experience from start to finish. Immediate offer, discreet meeting, and superb service.”
Surrey
Private client
“A seamless experience from start to finish. Immediate offer, discreet meeting, and superb service.”
Surrey
Private client
“A seamless experience from start to finish. Immediate offer, discreet meeting, and superb service.”
Surrey
Private client
- Testimonials
Discretion, expertise, immediacy
Free, Confidential Valuations
No obligation, no public exposure — assessed entirely in private.
Same-Day Offers & Payment
Accept a valuation and receive funds the same day, by bank transfer or cash.
FGA/DGA Certified Gemmologist
Gemstones assessed by a qualified gemmologist, available on request for every valuation.
Fully Insured Collection
Home visits, hotel appointments, or insured postal packs — across the UK and Europe.
- Why Sell to Us
Auction versus private sale
- The Comparison
Selling through auction can mean a long wait and significant deductions before any proceeds reach you. Here’s how a private sale with us typically compares.
Feature
Total Received
Auction
Regent Street Antiques
✅ Same-day
✅ Immediate
✅ £0
✅ £0
✅ No Impact — Direct Offer
✅ Up to 100%
Figures reflect typical industry averages for seller fees, buyer’s premium, and settlement timelines at traditional auction. Individual auction houses vary — we’re happy to talk through your specific comparison.
- Selling Options
Sell however you prefer
Send photographs for the fastest route, or choose one of the ways below — every option is free, confidential, and fully insured.
- Frequently Asked
Selling your jewellery, clarified
- Considering Selling?
