Product Line E · Developer Platform

The jewellery data layer for the world’s smartest apps.

API infrastructure for AI valuation, blockchain authentication, digital gold, certificate verification and luxury jewellery data integrations.

REST API concept AI valuation modules Blockchain records Gold and gemstone data

Request API Access View Sample Endpoints

documentation-preview.js

// Sample valuation request — documentation preview only
const response = await fetch('/v1/valuations', {
  method: 'POST',
  headers: {
    'Authorization': 'Bearer YOUR_API_KEY',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    asset_type: 'diamond',
    carat: 2.14,
    cut: 'round_brilliant',
    clarity: 'VVS1',
    colour: 'D'
  })
});

const valuation = await response.json();

Home Product Lines GEMIA xAPI

API modules

One certified infrastructure layer for multiple luxury-data domains

The uploaded xAPI strategy has been adapted into GEMIA’s production website. Public code examples, endpoint explorers and pricing are shown as documentation previews until official API access, authentication, rate-limits and service-level terms are released.

GEMIA LBMA Gold API

Live gold pricing, valuation, authentication, tokenisation and provenance workflows for gold-linked experiences.

Request access →

GEMIA GIA Diamond API

4C grading logic, certificate verification, market valuation and provenance pathways for diamond products.

Request access →

GEMIA IGI Gemstone API

Gem identification, grading, origin verification and report-linked workflows for coloured-stone use cases.

Request access →

GEMIA Blockchain API

Create, verify and transfer ownership record concepts using certificate, QR-code and digital passport logic.

Request access →

GEMIA AI Valuation API

Jewellery, gold and diamond valuation concepts with comparable-data logic and forecast-oriented data products.

Request access →

Digital Gold & Crypto API

Wallet creation, digital gold conversion and future-ready settlement concepts, subject to regulatory readiness.

Request access →

Endpoint explorer

Sample API reference

These examples communicate the intended developer experience. They are documentation previews and should not be treated as live endpoints until GEMIA publishes official API credentials and developer terms.

POST /v1/valuations AI-assisted gem or jewellery valuation ~110ms

Submit stone or piece parameters and receive a valuation-response concept with confidence score and comparable-sales references.

GET /v1/certificates/{id} Retrieve a blockchain certificate ~85ms

Retrieve certificate data, ownership status, grade attributes and verification-state concepts.

POST /v1/certificates Create a certificate-ready record ~2.1s

Create a new certificate-ready record for qualifying pieces, subject to plan approval and operational validation.

GET /v1/listings Query authenticated marketplace listings ~95ms

Search authenticated jewellery listing concepts with provenance data, filters and pagination.

GET /v1/gold/spot Gold spot-price data concept ~45ms

Retrieve indicative live-price logic for LBMA-aligned gold workflows, subject to data-provider agreement.

Pricing

xAPI pricing pathways

Pricing is presented as commercial guidance. Sandbox, production keys and integrations should be issued only after partner onboarding and terms approval.

Sandbox

Developer Sandbox

£0

1,000 sample calls/month concept, rate-limited and subject to approval.

Request Sandbox

Starter

£149 / month

50,000 calls/month concept with basic support and low-volume partner integrations.

Discuss Starter

Growth

£499 / month

250,000 calls/month concept for growing fintech, retail and marketplace integrations.

Discuss Growth

Professional

£1,499 / month

1M calls/month concept with webhooks, priority support and expanded service modules.

Request Professional

Enterprise

£1,999+ / month

Custom call volumes, SLA discussion, dedicated support and integration planning.

Book Enterprise

Use cases

Built for partners who need certified jewellery intelligence

xAPI can become the invisible infrastructure layer for businesses that need trusted jewellery, gold, gemstone, valuation and provenance data.

Banks and fintechs

Integrate gold, diamond and asset valuation data into wealth, collateral or alternative-asset experiences.

Insurers

Support jewellery insurance estimates, claim review workflows and certificate-backed underwriting concepts.

Retailers and marketplaces

Bring certification, provenance and product-data enrichment into commerce and resale environments.

Developers

Prototype certified jewellery experiences using sample endpoint structures and future GEMIA API documentation.

Production readiness

API access should remain approval-led until the developer platform is live

The uploaded file included live-looking sandbox, copy-code and endpoint explorer behaviours. This production version presents them as sample documentation and routes all access requests through private consultation to avoid implying that public credentials are already available.

Developer terms required API keys approval-led Rate limits to be confirmed Data-provider terms apply

Next step

Request xAPI access privately

Tell GEMIA about your platform, use case, expected volume, data requirements and whether you need gold, diamond, gemstone, valuation or blockchain modules.

Request API Access Back to Product Lines