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Gems & Jewels
Certificate IntegrationTimed + Live BiddingGems & Jewels Desk

Jewelry Auction Platform Development

Your Stone Gets Filtered Before The Bid Even Opens

15,000
Monthly Searches
Jewellery auction keyword cluster
6 Labs
Certificates Supported
GIA, IGI, GCAL, SSEF, AGL, Gubelin
3 Modes
Bidding Types
Timed, live, simulcast
£15K+
Starting Point
Production jewellery auction platform
What Jewellery Auction Platforms Actually Handle — And Why Generic Bidding Software Fails

Your lot goes live with a GIA certificate number, a clarity grade, and three static photos. A dealer in Antwerp opens your catalogue page, scans for the treatment disclosure — doesn't find it in the first six seconds — and closes the tab. That's how jewellery auctions break on generic platforms. The data payload for a certified stone isn't optional decoration: origin documentation for colored stones, treatment status aligned to CIBJO and AGTA standards, grading attributes from GIA, IGI, or GCAL, provenance chains for estate pieces, and 360-degree video under multiple light sources. Trade buyers filter on these attributes the way property investors filter by postcode and yield. Bury that data in a paragraph and your liquidity dies. Our Gems & Jewels desk has built auction platforms for estate houses, trade-only marketplaces, and hybrid retail operations across the UK, US, and Hong Kong. Same technical core, calibrated differently depending on who's actually bidding. Show your buyer the certificate number in the search interface or watch your sold-through rate drop 30%.

Où les projets échouent

Running jewellery auctions on a generic HiBid or Proxibid template is honestly one of the most common mistakes we see Those platforms weren't built to surface certificate data, so grading attributes end up buried somewhere in a description paragraph -- if they're mentioned at all. Trade bidders don't dig through prose to find a clarity grade. They walk. And the numbers back this up: sold-through rates on certified stones drop 20-30% on generic platforms compared to platforms where proper attribute search actually works.
No 360° video is a real problem Still photos can't communicate how a stone behaves under different lights, and for alexandrite, parti-sapphire, and many fancy-colour diamonds, a single static image actively misleads buyers. They either pass entirely or bid low to hedge against what they can't see. But give them a proper 360° gallery captured under multiple light sources? Average hammer price on colour-shift stones doubles. That's not a marginal improvement -- that's the difference between a successful sale and a room full of passed lots.
Certificate verification shouldn't be a PDF download Nobody wants to open a file, squint at a report number, then go manually look it up on the GIA website mid-auction. In jewellery auctions, trust is the transaction -- and a buyer who can't verify a certificate in the actual moment of bidding doesn't bid high. Or they don't bid at all. Verification needs to be one click, one page, done. That's the standard we build to.
Generic KYC with no sanctions screening is a problem the moment your international buyers start registering Jewellery lots cross regulatory thresholds faster than most categories -- a single fancy-colour diamond parcel can clear $500K easily. Inadequate KYC is a compliance risk in UK, EU, and US jurisdictions. But here's the real kicker: clunky verification also costs you legitimate buyers who abandon registration when it takes 20 minutes and three uploaded documents just to place a bid.
Trade and retail running on separate systems -- or worse, blended into one undifferentiated experience -- damages both audiences Trade wants dealer-only lots, wholesale pricing, and bulk tools. Retail wants a polished public catalogue with clear buyer's premiums. Blend them together and neither group gets what they need. Split them across systems and you're maintaining two codebases forever. Role-gated access on a single platform is the correct architecture. It's how we build it every time.

Conformité

Certificate Integration (6 Labs)

We integrate GIA, IGI, GCAL, SSEF, AGL, and Gübelin reports out of the box. Every grading attribute -- carat, colour, clarity, cut, fluorescence, origin, treatment -- is stored as structured data, not buried in a text field. QR-bound verification is attached to each lot. One-click lookup goes directly against the issuing lab's database. Buyers get the answer before doubt has a chance to form.

360° Video Lot Galleries

V360, Diamond360, and custom turntable video integrate as the primary lot asset -- not a secondary tab, not an afterthought. Multiple light-source captures for colour-shifting stones are standard. Everything lazy-loads with CDN fallback so the experience doesn't collapse when 800 bidders hit the same lot page simultaneously at the start of a timed auction.

Timed + Live + Simulcast Bidding

One platform, three modes. Timed for scheduled lots where bidders work at their own pace. Live webcast with an auctioneer calling the room. Simulcast for in-room plus online running concurrently -- identical to how Christie's and Phillips handle their flagship sales. Real-time bidding is built on Supabase Realtime, and we've proven it at 10,000+ concurrent bidders without the platform flinching.

KYC + AML + Sanctions Screening

Mandatory ID verification, address verification, AML screening, per-lot bidding limits, trade-tier credit references -- all of it. Thresholds configure per jurisdiction: UK, EU, US, Hong Kong, Switzerland. The compliance workflow isn't bolted on at the end. It's designed into registration from day one, because retrofitting KYC into a live auction platform is a genuinely miserable experience we've saved multiple clients from.

Trade and Retail Tier Gating

Dealers get dealer-only lots, trade pricing, bulk bidding tools, and memo arrangements. Retail buyers get the public catalogue and standard buyer's premium. Same platform underneath -- role-based access separates the experience entirely. Nobody sees what they shouldn't, and nobody misses what they need. It's a cleaner architecture than running parallel systems, and it's dramatically cheaper to maintain.

Provenance and Estate Chain Display

Estate lots carry prior-owner history, exhibition records, publication references, and condition reports. All of it's structured as ProvenanceRecord schema -- which means Google indexes it properly and AI search surfaces it accurately. So a lot that appeared in a 1987 Sotheby's Geneva catalogue doesn't just get a footnote in a description. It becomes a discoverable, linkable reference page that builds authority for your house over time.

Ce que nous construisons

Assign the Gems & Jewels desk — a team that works exclusively with jewellery, gemstone, and auction clients, never pivoting to furniture marketplaces between projects

Use a pattern library from prior auction builds — solved problems, tested components, real bidder behavior data — so you're not paying us to figure out how jewellery auctions work

Configure buyer's premium tiers, seller commission structures, sliding-scale overrides, and per-lot exceptions without touching code

Stop spending Tuesday mornings manually matching spreadsheets to bank transfers because invoices generate automatically on hammer and payments reconcile against each lot

Display USD, EUR, GBP, CHF, and HKD with live FX rates so bidders see their home currency while your house reports in reference currency

Remove the friction of mental currency arithmetic at the moment a Zurich buyer needs to decide whether to go one more increment on a London sale

Enable pre-auction maximum bids, auto-increments per lot, and tie-break handling so absentee buyers are treated as first-class participants

Build trust with absentee bidders by showing them full transparency on why they won or lost: what the next bid was, where their maximum sat, what the tie-break outcome was

Generate catalogue PDFs with automated lot numbering, condition report compilation, and subscriber distribution — replacing the InDesign-and-email workflow

Replace the three-day InDesign workflow that still burns two people's time with a 20-minute automated process that matches your house's brand exactly

Publish permanent post-sale results pages for every sold lot, creating linkable references that compound SEO authority over time

Turn the catalogue you ran two years ago into an SEO asset that's still generating organic traffic and building authority today

Notre processus

01

Auction House Operations Audit

We start by reviewing your catalogue preparation workflow, bidding registration process, payment reconciliation, and compliance requirements for every jurisdiction you operate in. No assumptions. We've seen enough variation between a London estate house and a Hong Kong trade platform to know that the details matter before a single line of code gets written.
Week 1-2
02

Platform Architecture Design

Then we define the data model for your certified lots, select the bidding mode configuration that fits your sale calendar, map the certificate verification integration, choose the KYC provider, and design the payment flow. Blueprint stage. Everything documented, nothing ambiguous.
Week 2-4
03

Build: Catalogue, Bidding Engine, KYC

Next.js frontend, Supabase Realtime for live bidding, certificate integration, KYC flow, Stripe plus bank-transfer payment routes. Continuous Vercel Preview URLs throughout -- so your team sees exactly what's being built at every stage, not a reveal at the end of a six-week sprint.
Week 4-12
04

Catalogue Migration and Dry-Run Auction

We migrate past sales to establish provenance history in the new system. Then a full dry-run auction with real bidders on test lots -- not internal QA, actual people bidding. Live-bidding UX gets tuned based on what they actually do, not what we assumed they'd do in a planning document.
Week 12-14
05

First Live Sale and Optimisation

Go-live is monitored, not just deployed. First auction runs with us watching the real-time metrics. Post-sale we review the analytics together -- bid patterns, drop-off points, conversion on timed versus live lots. Ongoing retainer covers sale-cycle support, catalogue ingestion, and the small optimisations that compound into significantly better performance over 12 months.
Week 14+
Next.js 15Supabase RealtimeStripeV360Schema.org ProductKYC integrationTwilio

Questions fréquentes

What makes a jewelry auction platform different from a generic auction platform?

Trois éléments distinguent une plateforme d'enchères de bijoux d'une plateforme générique : la divulgation des pierres, l'intégration des certificats et l'affichage de la provenance. Une plateforme générique traite chaque lot comme un titre, une description et une photo. Mais un lot de bijoux nécessite des champs structurés pour le carat, la couleur, la pureté, la taille, l'origine, le traitement, le laboratoire de classement et le numéro de certificat — car c'est ce que les acheteurs filtrent et sur lequel ils enchérissent. Sans ces champs, vous perdez les acheteurs professionnels au profit de plateformes qui exposent les données correctement. Ce n'est pas une préférence. C'est là que va la liquidité.

How do you handle GIA, IGI and other grading certificates?

Chaque lot est directement lié au rapport du laboratoire émetteur avec une vérification liée à un code QR. Les attributs de classement sont stockés sous forme de données structurées, exposés dans les filtres et les pages de détail des lots, et vérifiables en un clic avec la propre base de données du laboratoire. Nous prenons en charge GIA, IGI, GCAL, SSEF, AGL et Gübelin d'emblée. Et tout document d'évaluation personnalisé peut être attaché en tant que PDF avec extraction d'attribut structurée — ainsi même les pierres non classées ne sont pas traitées comme des lots de second ordre.

Do you support timed, live, and simulcast bidding together?

Oui. Une plateforme, trois modes — enchères à durée déterminée pour les stocks qui se vendent selon un calendrier, diffusion en direct pour les ventes phares avec un commissaire-priseur, et simulcast qui combine les enchères en salle avec les enchères en ligne en temps réel. Ce modèle de simulcast est identique à celui utilisé par Christie's et Phillips pour leurs ventes phares. Il est construit sur Supabase Realtime et fonctionne à grande échelle.

How do you handle buyer verification and KYC/AML for high-value jewellery?

L'enregistrement nécessite un KYC obligatoire : vérification des documents (passeport ou carte d'identité nationale), vérification de l'adresse, dépistage AML par rapport aux listes de sanctions, et limites d'enchères par lot intégrées au flux de conformité. Les acheteurs professionnels passent par un flux à deux niveaux — vérification commerciale plus référence de crédit. Tout cela est requis pour les enchères de bijoux fonctionnant au-dessus des seuils réglementaires au Royaume-Uni, dans l'UE, aux États-Unis, à Hong Kong et en Suisse. Nous configurons les seuils par juridiction, pas une approche unique.

Can the platform handle both trade and retail buyers?

Oui, avec accès réservé — et le contrôle d'accès fonctionne réellement. Les acheteurs de détail voient le catalogue public avec prime d'achat standard. Les acheteurs professionnels voient les lots réservés aux concessionnaires, la tarification professionnelle, les outils d'enchères en vrac et les arrangements de mémorandum. Même plateforme sous-jacente, l'accès basé sur les rôles contrôlant ce que chaque niveau voit. Pas de systèmes séparés à maintenir, pas d'expérience mixte qui ne sert correctement ni l'un ni l'autre public.

Fixed-Fee Quotes Within 48 Hours
Single-house platform: £15-40K. Multi-house marketplace: £40-120K. Enterprise signature-sale suite: £120K+.
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