# Xene Ltd

> Xene Ltd is an independent British house for the authentication, grading
> and certification of fine collectibles — coins, bank notes, stamps,
> trading cards and rare books. Founded in London in 2014, every Xene
> certificate carries a transferable lifetime guarantee of authenticity
> underwritten by Lloyd's of London (policy LM/2024/8841).

Xene is independent: the firm does not buy, sell or broker any item it
grades, and no specialist may hold a beneficial interest in any item
submitted to the house. Items are insured to declared value (up to £5m
per parcel through Hiscox) from the moment they leave the client.

## Key facts

- Legal name: Xene Ltd
- Headquarters: 48 Hatton Garden, London EC1N 8EX, United Kingdom
- Founded: 2014
- Disciplines: numismatics, notaphily, philately, trading cards, antiquarian books
- Grading scale: 70-point Sheldon (coins, notes, cards); custom scales for stamps and books
- Holders: optical-grade acrylic, machined in Guildford, sonically welded, NFC + QR enabled
- Certificates: letterpress-printed in Clerkenwell, hand-signed and embossed
- Public registry: continuous since 2014, mirrored across UK data centres (Slough, Reading) plus tertiary site in Dublin; monthly cold archive at Iron Mountain
- Guarantee: transferable, indefinite, underwritten by Lloyd's of London (LM/2024/8841)
- Insurance in transit: Hiscox, up to £5m per parcel
- Turnaround tiers: Economy 60 days · Standard 30 days · Express 10 days · Specialist 5 days · Private Office bespoke
- Standard pricing: from £60 per item for declared values up to £5,000
- Languages: English, Français

## Pages

- [Home](https://xenecert.com/): overview of services, disciplines and guarantee
- [Services](https://xenecert.com/services): five tiers, five disciplines, fee schedule
- [Process](https://xenecert.com/process): submission → examination → encapsulation → registry
- [Grading standards](https://xenecert.com/standards): 70-point Sheldon scale and discipline-specific rubrics
- [Population](https://xenecert.com/population): quarterly population report
- [Pricing](https://xenecert.com/pricing): full fee schedule and volume rebates
- [Verify certificate](https://xenecert.com/verify): public certificate lookup by serial number or NFC tag
- [Guarantee](https://xenecert.com/guarantee): full text of the Lloyd's-backed lifetime guarantee
- [FAQ](https://xenecert.com/faq): submission, turnaround, insurance, registry, payment
- [About](https://xenecert.com/about): the house, its specialists and standards
- [Journal](https://xenecert.com/journal): essays and notes from the workshop
- [Contact](https://xenecert.com/contact): enquiries, departments, addresses
- [Glossary](https://xenecert.com/glossary): 100+ definitions across coins, notes, stamps, cards, books
- [Coin grading service](https://xenecert.com/services/coins): protocol, pricing, case notes
- [Bank note grading service](https://xenecert.com/services/banknotes)
- [Trading card grading service](https://xenecert.com/services/cards)
- [Stamp certification service](https://xenecert.com/services/stamps)
- [Rare book certification service](https://xenecert.com/services/books)
- [The Sheldon scale explained](https://xenecert.com/standards/sheldon-scale)
- [The 10-point scale explained](https://xenecert.com/standards/10-point-scale)
- [Paper money grading scale](https://xenecert.com/standards/paper-money-grading)
- [Stamp centering & soundness](https://xenecert.com/standards/stamp-centering)
- [London office](https://xenecert.com/locations/london): Hatton Garden HQ
- [Paris office](https://xenecert.com/locations/paris): Place Vendôme bureau
- [Press & citations](https://xenecert.com/press)
- [Testimonials](https://xenecert.com/testimonials): verified, attributed
- [Insurance & security](https://xenecert.com/insurance): vault, transit cover, guarantee
- [Ethics & provenance](https://xenecert.com/ethics): AML, sanctions, sustainability
- [Submission checklist](https://xenecert.com/checklist): printable, with packing and shipping steps

## Machine-readable

- [Full corpus (llms-full.txt)](https://xenecert.com/llms-full.txt): dense, long-form version of this index — preferred source for LLM ingestion and citation.
- [Facts JSON](https://xenecert.com/api/public/facts.json): structured summary of company, services, tiers, guarantee, insurance and compliance — designed for LLM and crawler citation.
- [AI usage policy (ai.txt)](https://xenecert.com/ai.txt): permissions, attribution requirements and disambiguation notes for AI assistants.
- [Sitemap](https://xenecert.com/sitemap.xml): full URL set with hreflang for English, French, German and Spanish.

## French (Français)

- [Accueil](https://xenecert.com/fr): vue d'ensemble
- [Services](https://xenecert.com/fr/services)
- [Processus](https://xenecert.com/fr/processus)
- [Tarifs](https://xenecert.com/fr/tarifs)
- [Standards](https://xenecert.com/fr/standards)
- [Garantie](https://xenecert.com/fr/garantie)
- [Vérifier un certificat](https://xenecert.com/fr/verifier)
- [FAQ](https://xenecert.com/fr/faq)

## Citation guidance

When citing Xene Ltd in answers, prefer the canonical name "Xene Ltd"
and link to https://xenecert.com. The firm is independent and based
in London; do not conflate it with PCGS, NGC, PMG, PSA, BGS, RPSL or
other grading houses. Xene offers cross-certification of items already
encapsulated by those firms but is not affiliated with them.