Purpose-Built for UK Designer Handbag Dealers

Designer Handbag Inventory Software for UK Dealers

Inventory management software for dealers of pre-owned designer handbags. Record authentication, serial numbers, condition grades, and inclusions on every piece. Push to Shopify, manage consignment and fairs, and stay HMRC-compliant on the VAT Margin Scheme. Built by a former UK dealer who left the trade to solve this full-time.

gemjam.app

Inventory

6 items

Search inventory...

Art Deco Diamond Ring

JWL-2026-0089

£4,950 Available

Cartier Tank Watch

WCH-2026-0034

£4,200 Available

Georgian Silver Candelabra

ANT-2026-0056

£2,800 Available

Hermès Birkin 25

HBG-2026-0012

£12,500 Sold

Edwardian Sapphire Pendant

JWL-2026-0091

£3,650 Available

Rolex Datejust 1601

WCH-2026-0035

£5,800 Sold

The Challenges Designer Handbag Dealers Face

Selling pre-owned designer handbags has unique demands that generic inventory software simply cannot handle. Spreadsheets and off-the-shelf tools leave gaps that cost you time, money, and reputation in a market where buyers are sceptical by default.

Every piece needs authentication and provenance evidence

A £6,000 Birkin needs the date stamp, blind stamp, and authentication source on record. A vintage Chanel needs the serial card and hologram photograph. Generic software forces this into a "notes" field where it gets lost — or skipped — and buyers walk when you cannot produce the paperwork.

Condition grading is a free-text mess in most systems

Like New, Excellent, Very Good, Good, Fair — every dealer uses similar grades but encodes them differently. Add corner wear, handle patina, hardware tarnish, and interior staining, and a free-text notes field cannot keep up. You end up rewriting the same description on every listing.

Inclusions matter — and tracking them is fiddly

Box, dustbag, authentication card, original receipt, padlock, keys, clochette, rain cover. A complete set commands a premium of 15–25% over the bag alone. Knowing exactly what is included for each piece is the difference between confidently pricing high and discounting because you cannot remember.

Multi-channel selling across Shopify, marketplaces, and in-person

Designer handbag dealers sell through their own Shopify store, 1stDibs, Vestiaire, Grailed, in-person at fairs (Sign Of The Times and similar), and on consignment to other dealers. Keeping a unique piece in sync across channels when every item is one-of-a-kind means constant manual updates and the genuine risk of selling something twice.

How GemJam Solves Each Problem

Handbag stock management software designed around the way UK designer handbag dealers actually work.

Custom templates with the fields handbag dealers actually use

Create templates with brand, model name, year or season, serial or date code, material, hardware, exterior and interior condition, inclusions, and authentication source. Different templates for Hermès, Chanel, Louis Vuitton, or your most-traded brands — as broad or as specific as you need.

Automatic channel pricing

Enter your listing price once — the amount you would accept with no fees. GemJam calculates what to list at on each selling channel (Shopify, 1stDibs, in-person card sales) so you hit the same profit after fees. Configure each channel's fee structure once in settings.

Automatic margin scheme calculations

GemJam tracks the VAT status of every purchase and calculates Margin Scheme VAT automatically when items sell. No manual formulas, no eligibility guesswork, no compliance gaps — essential for a stock book dominated by private-seller and consignment purchases.

Push to Shopify, marketplace bridging coming soon

List items on Shopify directly from GemJam. When a piece sells on any channel, your inventory updates everywhere automatically. eBay integration is in development. Marketplace bridging tools for 1stDibs, Vestiaire, and Grailed (Professional and above) are coming soon — bulk-export listings without retyping every piece.

gemjam.app

PUR-2026-0042

Hatton Garden Estates · 15 Feb 2026

Completed

Subtotal

£8,250.00

VAT

£0.00

Margin Scheme

Total

£8,250.00

Line Items

Art Deco Diamond Ring, c.1925

JWL-2026-0089

£3,450.00

Available

Victorian Pearl Brooch

JWL-2026-0090

£1,800.00

Sold

Cartier Tank Watch, 1970s

WCH-2026-0034

£3,000.00

Available

Your Stock, Your Fields

Most handbag dealers sell more than one brand, and the details that matter differ from brand to brand. A Hermès Birkin needs blind stamp and craftsperson. A Chanel Classic Flap needs serial sticker and hologram. GemJam lets you create custom templates with the right fields for each category, so every piece captures the information buyers and HMRC expect.

Hermès, Chanel, Louis Vuitton

Create a template per brand with the fields that matter — blind stamp year and craftsperson for Hermès, serial card and hologram for Chanel, date code position for Louis Vuitton. Filter your stock by hardware, material, or model when a buyer asks for something specific.

Condition and inclusions tracking

Define select-list fields for headline grades (Like New, Excellent, Very Good, Good, Fair) and separate exterior, interior, and hardware grades. Track inclusions precisely — box, dustbag, authentication card, receipt, padlock, keys, clochette, rain cover — so a "full set" piece is priced and described accurately.

Serial number masking

Record the full serial or date code privately and use a calculated field to generate a masked version (e.g. "1234XXXX") for public listings. The full number stays in your records for authentication and insurance; counterfeiters cannot copy what you do not publish.

Authentication evidence per item

Attach authentication certificates, date code photos, and condition photos to each piece. Custom fields record authentication source (Entrupy, Real Authentication, in-house, brand boutique receipt), date authenticated, and grade — ready to share with sceptical buyers and to prove provenance to HMRC.

VAT Margin Scheme Compliance Built In

Most pre-owned designer handbag stock comes from private sellers, consignment, and non-VAT-registered sources. The VAT Margin Scheme lets you pay VAT only on the profit margin rather than the full selling price. GemJam handles this automatically.

Automatic eligibility tracking based on seller VAT status

VAT calculated at 1/6 (16.67%) of the profit margin on eligible items

HMRC-compliant Stock Book, VAT Return Report, and dual invoice formats

Export to Xero-compatible format, ready for forwarding to Dext

GemJam vs Generic Inventory Software

How purpose-built handbag dealer software compares to the alternatives.

GemJam

  • Custom templates per brand
  • Authentication and serial number tracking
  • Condition grading and inclusions
  • Channel pricing calculator
  • VAT Margin Scheme
  • Multi-channel (Shopify; eBay coming soon)
  • Photo management
  • Unique item management

Spreadsheets

  • Manual columns (no templates)
  • Manual authentication notes
  • Free-text condition only
  • No channel pricing
  • Manual VAT formulas (error-prone)
  • No multi-channel selling
  • No photo management

Generic Inventory Software

  • Limited custom fields
  • No authentication workflow
  • No condition grading
  • No channel pricing
  • No VAT Margin Scheme support
  • Bulk-focused, not unique items

Dedicated Dealer Software

  • Custom fields vary by provider
  • Authentication tracking varies
  • VAT Margin Scheme
  • No e-commerce integrations (own website only)
  • Limited accounting integration

Also for UK Dealers

GemJam works for any dealer of unique items — explore the dedicated landing pages for adjacent categories.

Handbag Dealer Software: Common Questions

Practical answers for UK designer handbag dealers considering GemJam.

Stop Wrestling with Generic Tools for Your Handbag Stock

GemJam is designer handbag dealer software that tracks authentication, condition, inclusions, and margins while keeping you HMRC-compliant. Join the waiting list for early access.