What S.j.phillips Limited does

S.J. Phillips Ltd is a London-based antique jewelry and silver dealer registered in England & Wales (company number 10539688), operating from a single showroom at 26 Bruton Street in Mayfair. The company's core business is the curation and sale of authenticated antique and period pieces spanning the 17th to 20th centuries, organized into three main categories: Silver Collection (English, French, German, Dutch, Iberian, Russian silverware from 1500 to present), Jewellery Collection (brooches, bracelets, earrings, necklaces, rings across multiple periods and styles), and Boxes & Vertu (snuff boxes, vinaigrettes, Faberge pieces and related decorative objects). A signed-jewellery line features pieces from prestigious houses including Cartier, Van Cleef & Arpels, Tiffany, Boucheron, Castellani, Giuliano, and Wiese, supported by gemological reports from SSEF, AGL, GCS, and GIA.

The business model is a traditional antique dealership with inquiry-based, high-value one-time transactions rather than standardized pricing tiers. Individual pieces are priced based on provenance, condition, gemological characteristics, and rarity, with observed price points ranging from under £1,000 to over £50,000. Distribution is exclusively through the Mayfair showroom, supplemented by an online catalog for browsing and participation in the Treasure House Fair; there is no e-commerce checkout. The go-to-market motion relies on direct consultation, brand reputation, and gemological documentation rather than digital sales infrastructure.

The customer base centers on high net worth collectors of antique jewelry and silver seeking authenticated pieces with documented provenance, with a secondary segment of museums and cultural institutions acquiring period items for collections and exhibitions. The company is privately held with no disclosed parent company, investors, funding history, or financial figures, and has no proprietary technology stack. No founding date, leadership roster, or growth metrics are publicly available in the source data.

Name

S.j.phillips Limited

Legal name

S.J. Phillips Ltd

Website

https://sjphillips.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

S.J. Phillips Ltd is a privately held Mayfair-based antique dealer specializing in authenticated period jewelry, English and Continental silver, and boxes and vertu objects, serving high net worth collectors and museums via its London showroom and antique fair participation.

Ownership category

akta.pro rank

Product category

Antique Jewelry and Silver Dealer

NAICS

Jewelry Retailers (458310), Used Merchandise Retailers (459510)

SIC

Retail-Jewelry Stores (5944)

akta.pro primary industry

Vintage Jewelry & Antique Dealers (CRAKAKAD)

akta.pro secondary industry

Vintage & Antique Collectibles Retail (CRALAGAE)

Keywords

• Antique jewelry
• Estate silver
• Antique dealer
• Signed jewelry
• Vertu boxes

Headquarters

HQ city

City Of London

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2C

Offering type

Services

Cost components

Operations, Personnel, Marketing or Sales, Infrastructure

Revenue model

1. Antique jewelry and gemstone sales: S.J. Phillips generates revenue through the direct sale of antique and period jewelry, including rings, necklaces, bracelets, earrings, and brooches featuring diamonds, rubies, sapphires, and emeralds. Individual pieces are sold at high price points (typically £5,000 to over £50,000) based on rarity, provenance, and craftsmanship.
2. Antique silver sales: Sale of antique silver items including silverware, decorative objects, and collectible pieces from various periods and origins (English, French, German, Dutch, Russian).
3. Boxes and vertu sales: Sale of antique boxes including snuff boxes, vanity items, and Faberge pieces, often featuring precious materials and intricate craftsmanship.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

S.J. Phillips Ltd is an antique jewelry and silver dealer operating from Mayfair, London, specializing in authenticated antique and period pieces from the 17th to 20th centuries. The company sells individual fine jewelry (rings, necklaces, bracelets, earrings, brooches), English and Continental silverware, and antique boxes and vertu items including Faberge, with provenance and gemological certification from SSEF, AGL, GCS, and GIA.

Product overview

S.J. Phillips Ltd is a London-based antique jewellery and silver dealer offering an extensive portfolio of antique and period pieces. The core offerings include: Silver Collection (English, French, German, Dutch, Iberian, Russian spanning 1500-present), Jewellery Collection (brooches, bracelets, earrings, necklaces, rings across 17th-20th centuries), Boxes & Vertu (snuff boxes, vinaigrettes, Faberge), Modern Silver (contemporary silverware), and Signed Jewellery from prestigious houses (Cartier, Tiffany, Van Cleef & Arpels). The company specializes in provenance-backed gemstone pieces including Burma rubies, Colombian emeralds, and antique diamonds, with items authenticated and accompanied by gemological reports from SSEF, GIA, AGL, and GCS.

Differentiator

Problem solved

Functional benefit

Products and services

• Silver Collection Antique silver pieces spanning English (1500-Onwards), French (Louis XV, Louis XVI, Empire, Strasbourg, Wine Tasters), German, Dutch, Iberian, and Russian silver items, including brandy pans, grape scissors, and trolley coasters. For antique silver collectors and interior decorators.
• Jewellery Collection Extensive antique and period jewellery including brooches (18th-20th century, enamel flowers, gold, spray designs), bracelets, earrings (antique, drop, diamond stud, gold, pearl), necklaces (diamond, gold, chain), and rings (diamond, emerald, ruby, sapphire, pearl, cameo, heart designs). For high net worth jewellery collectors.
• Boxes & Vertu Antique boxes and vertu items including English, Empire French, French Plain, German, Lacquer, Louis XV, Louis XVI styles, Silver Boxes, Vinaigrettes, and Vertu Faberge pieces. For collectors of antique decorative objects.
• Modern Silver Modern silver items including Bottle Tops, Beakers & Goblets, Candlesticks, Porringers, Pots & Jugs, Sundries, Tableware, Trays & Salvers, and 20th Century Silver. For collectors and buyers of contemporary silverware.
• Signed Jewellery Signed and designer jewellery from renowned houses including Boucheron, Cartier, Castellani, Giuliano, Tiffany, Van Cleef & Arpels, and Wiese. For collectors of named designer jewellery.
• Sundry Jewellery Items Miscellaneous antique jewellery items including Cameo, Clasps, Crosses, Cuff Links, Clock & Watches, Garnets, Gold Pendants, Hearts, Insect & Animals, Loose Stones, Paste & Chrysolite, Pendants, and Pins. For collectors seeking antique accessories.
• Recent Acquisitions Newly acquired antique pieces featuring Cartier sapphire and diamond brooches, Burma ruby rings, antique snuff boxes, and Queen Anne silver items. For collectors seeking latest authenticated inventory.

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core and minor.

• SSEF Swiss Gemmological InstitutecoreTechnology or IntegrationSSEF provides gemological authentication and certification for stones, confirming origin (e.g., Burma ruby origin) and whether stones show evidence of heat treatment. Their reports accompany high-value pieces to provide buyer confidence.
• AGL (American Gemological Laboratories)coreTechnology or IntegrationAGL provides gemstone grading and origin reports for rubies, emeralds, and other colored stones sold by S.J. Phillips, verifying authenticity and characteristics.
• GCS (Gem Certification & Assurance Lab)coreTechnology or IntegrationGCS provides gemological reports for diamonds and colored stones, confirming origin opinions and treatments for pieces in the inventory.
• GIA (Gemological Institute of America)coreTechnology or IntegrationGIA provides diamond grading reports for diamonds sold by S.J. Phillips, including the famous 4Cs assessment and origin opinions.
• Treasure House FairminorChannel Partner/ Reseller/ DistributorS.J. Phillips participates in the Treasure House Fair, a prestigious antique fair in London where dealers showcase their inventory to collectors and buyers.

Recent moves4 records

Expansion highlights4 records

Broad incumbents

• Sotheby's: Global auction house with a long-established jewelry and silver category in London. Comparable buyer and consignor pool, plus a structured online bidding platform that pressures traditional Mayfair dealers' offline-only model.
• Christie's: Global auction house with deep London presence and a dedicated jewelry and silver department. Competes for the same consignors and buyers at the upper end of the antique jewelry and silver market, but operates through auction rather than fixed-price retail.
• Bonhams: International auction house with a strong London jewelry and silver department. Overlaps in sourcing signed and period pieces from estates and competing for HNW buyers, while operating a much broader auction-based platform.

Direct peers

• Wartski: London-based antique jewelry and Fabergé dealer with a long-established Bond Street presence. Directly comparable in that both specialise in signed period jewelry, Fabergé, and silver/vertu sold to HNW collectors and institutions via personal consultation.
• Symbolic & Chase: London antique jewelry dealer focused on signed pieces from major maisons. Comparable in inventory mix (Cartier, Van Cleef, etc.), HNW clientele, and appointment-led showroom sales model.
• Bentley & Skinner: Bond Street jeweller and silversmith with a heritage showroom selling antique, signed, and bespoke fine jewelry and silver. Closely comparable on luxury Mayfair positioning, antique silver inventory, and HNW collector customer base.
• Hancocks & Co: Historic Mayfair antique and second-hand jewelry dealer, comparable in being a long-standing London showroom specialising in signed and period pieces from houses such as Cartier and Boucheron, sold through direct client relationships.
• Berganza Antique & Modern Jewellery: Hatton Garden-based antique and signed jewelry retailer with similar product categories and customer profile. Comparable in offering certified antique and signed jewelry from major houses to collectors, though with a different street positioning.

Regional players

• Fellows Auctioneers: Birmingham-based UK auctioneer with a dedicated antique and second-hand jewelry department. Comparable on inventory category and buyer demographic, though geographically centred in the Midlands rather than Mayfair.

Emerging players

• 1stDibs: Online luxury marketplace aggregating antique and vintage jewelry, silver, and decorative objects from dealers worldwide. Relevant as the digital channel reshaping how HNW buyers discover and transact in antique jewelry, against which S.J. Phillips' offline model is benchmarked.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks5 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/s-j-phillips-ltd

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about S.j.phillips Limited