Exquisite. Elusive. Extraordinary.
JAR
Jewellery
Regent Street Antiques specialises in the acquisition of fine jewellery by JAR (Joel Arthur Rosenthal). Celebrated for its extraordinary artistry, sculptural forms and highly individual designs, JAR jewellery is widely recognised as wearable art and remains highly prized among discriminating collectors and private estates.
We provide confidential valuations and private offers for JAR jewellery, handled with discretion and a deep understanding of this most distinctive of jewellery maisons.
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How To Sell JAR Jewellery Online?
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Featured JAR Jewellery
-------------- WHY US
Why Sellers Trust Regent Street Antiques
- Specialists in rare JAR and ultra-high-end jewellery
- Same-day offers & immediate payment
- Trusted by collectors in London, Paris, New York, Geneva, and globally
- Private appointments at our offices or 5-star hotel partner locations
- Discreet, expert-led service throughout
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The Legacy of JAR
Founded by Joel Arthur Rosenthal in 1978, JAR is based in Paris and maintains an aura of exclusivity and artistic independence that is virtually unmatched in the world of high jewellery. Rosenthal — a graduate of Parsons School of Design and a former designer at Van Cleef & Arpels — began creating jewellery that blurred the lines between fine art and jewellery design.
JAR is known for its intense attention to form, colour, texture and composition, often using vibrant gemstones arranged in ways that resemble painting and sculpture. Each piece is custom-made, handcrafted, and imbued with a singular artistic vision. JAR jewellery is rarely retailed in conventional boutiques and is often acquired through private appointments, exhibitions and collector networks — contributing to its mystique and collectability.
JAR Paris: The Pinnacle of Jewelled Art
Joel Arthur Rosenthal’s atelier on Place Vendôme produces only a few dozen pieces per year — all entirely unique, mostly by private commission. Using unconventional materials, intricate pavé settings, and vibrant gemstone combinations, JAR revolutionised modern jewellery design.
Each JAR jewel is a secret treasure: a breathtaking object of beauty, creativity, and technical perfection.
The Most Coveted JAR Creations We Seek
We are actively seeking to acquire the following JAR creations, which are universally admired and highly collectable:
- Signature Gemstone Rosettes and Brooches — intense colour and sculptural form
- Flora and Fauna Motifs — stylised flowers, leaves, insects and natural themes
- Abstract Sculptural Jewellery — expressive forms that defy traditional categorisation
- Statement Cocktail Rings — bold gemstone compositions with artistic impact
- Earrings and Drops — pieces where gemstone placement creates motion and depth
- Necklaces and Pendants — expressive sculptural necklaces, gemstone chains and pendants
- Signed JAR Jewellery, with or without original documentation
JAR jewellery with strong artistic definition or established provenance is especially desirable.
Legendary Vintage and Estate JAR Pieces We Seek
- Early JAR Creations (1980s–1990s) — pieces reflecting the early evolution of Rosenthal’s style
- Rare Artistic Masterpieces: Exceptional rosettes, floral clusters or themed suites
- Important Ring and Brooch Works: Large-scale or high-impact pieces from celebrated exhibitions
- Collector Assemblies: Sets of earrings, brooches and matching rings
- Historical or Exhibition Provenance: Pieces with collection history or notable exhibition lineage
- Estate and Legacy JAR Jewellery: Works held in private families and passed through generations
If you own JAR jewellery and are considering a confidential valuation or private sale, we invite you to contact us for a discreet discussion.
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Why Collectors Seek JAR Jewellery
- Artistic Vision: Jewellery that functions as fine art as much as ornament
- Custom Craftsmanship: Every piece is individually realised by master artisans
- Sculptural Forms: Bold use of line, contrast, and colour combinations
- Rare and Limited: Highly distinctive pieces with limited availability
- Collector Appeal: Works held in important private collections and museums
-------------- About Us
About Regent Street Antiques
Looking to Sell Your JAR Jewellery?
We specialise in acquiring exceptional JAR creations, including rare, vintage and highly collectable pieces.
- Free, confidential valuations
- Competitive offers from true collector demand
- Expert authentication and provenance support
- Discreet, efficient transactions with immediate settlement where appropriate
Message Our JAR Jewellery Team on WhatsApp →
Testimonials
Discover how knights, nobles & servants lived within the castle’s walls during its golden age. We welcome you to step back in time.
An expert, discreet and deeply respected valuation process.
Surrey
Outstanding communication and seamless service.
Kent
Professional, patient and highly knowledgeable — very recommended.
London
Private Collector
FAQ's
Frequently Asked Questions
1. Which Cartier watches are most in demand?
3. How can I get a valuation for my Cartier watch?
5. Do you only buy vintage Cartier watches?
No — while we focus on rare and vintage pieces, we also purchase modern Cartier watches, especially limited editions or models with original box and papers.
2. How quickly can I receive payment for my watch?
4. How do I know my Cartier watch will be valued fairly?
6. Can I meet in person to sell my Cartier watch?
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Across UK & Europe
