Scintessa
AuctionsBrowseHow it worksAbout
Sign inRegister to bid
Scintessa

A diamond & gemstone auction house. Certified stones, sourced at wholesale, opened to bid — brilliance, within reach.

support@scintessa.com

Auctions

Current saleBrowse the catalogueRegister to bidSign in

Scintessa

How it worksAboutThe saleroomYour account

Legal

Terms of salePrivacy policyCookie policyDealer's Notice

Stay informed

Sale alerts and new-lot notices, sent when a sale opens. No noise.

© 2026 Scintessa. A trading name of Xzist Assets Ltd, registered in England & Wales.

Precious-metal articles are hallmarked in accordance with the Hallmarking Act 1973; our Dealer’s Notice is displayed in the terms. Diamonds and gemstones are certified by independent laboratories.

A note on cookies

Scintessa uses only essential cookies — the ones that keep you signed in and let you bid and check out. We don’t use advertising or third-party tracking cookies. Read our Cookie Policy.

Legal

Privacy Policy

Scintessa respects your privacy. This policy explains what personal data we collect when you use our saleroom, why we use it, who we share it with, and the rights you have under UK data-protection law.

Last updated 19 July 2026

1. Who we are

Scintessa operates this saleroom. We are the “controller” of the personal data we hold about you, which means we are responsible for how it is used.

You can reach us about your data:

  • By email: support@scintessa.com

2. The information we collect

Information you give us

  • Account and identity details — your name, email address, password (which we store only in an encrypted, hashed form), and, where you provide them, your telephone number and billing and delivery addresses.
  • Bidding activity — the lots you watch and bid on, the bids you place, and the lots you win.
  • Payment and settlement details — we take payment by bank transfer. We record the unique payment reference on your invoice and reconcile the amount we receive against our bank statement. We do not ask for or store your card numbers, and we never send our bank details by email.
  • Identity verification — for higher-value purchases we may need to verify your identity and, where required, the source of your funds, to meet our legal obligations for dealers in high-value goods.
  • Correspondence — messages and enquiries you send us, and your notification preferences.

Information we collect automatically

  • Essential cookies — a small number of strictly necessary cookies keep you signed in and remember your cookie choice. We do not use advertising or tracking cookies. See our Cookie Policy for the full list.
  • Security and technical logs — our hosting providers record limited technical information such as your IP address, browser type and the pages requested, to keep the service secure, available and working correctly.

3. How we use your information, and our legal bases

Under UK data-protection law we must have a “lawful basis” for using your personal data. We rely on the following:

  • To perform our contract with you — to open and run your account, accept your bids, confirm lots you win, issue invoices, take payment and arrange dispatch of your purchases.
  • To meet our legal obligations — to keep accounting and tax records, to carry out identity and anti-money-laundering checks where they apply, and to comply with hallmarking and consumer law.
  • For our legitimate interests — to secure the saleroom and prevent fraud, to keep you informed about sales and lots you have engaged with, to respond to your enquiries, and to improve our service. We only rely on this where your interests and rights do not override ours.
  • With your consent — where we ask for it, for example for any optional communications. You can withdraw consent at any time.

4. Marketing and notifications

We send transactional messages you would expect from a saleroom — such as bid confirmations, outbid alerts, invoices, payment reminders and dispatch updates — as part of providing the service. If we ever send wider marketing, we will do so only where the law allows, and every such message will include a way to opt out. You can change your preferences, or ask us to stop, at any time using the contact details above.

5. Who we share your information with

We do not sell your personal data. We share it only where necessary, and with appropriate safeguards, with:

  • Our technology providers (processors) — our database, authentication and file storage provider (Supabase) and our application hosting provider (Vercel), who process data strictly on our instructions to run the site; and, where enabled, an email-delivery provider to send the transactional messages described above.
  • Banking and payment — our bank, to receive and reconcile your payment.
  • Dispatch and logistics — the insured couriers and fulfilment partners we use to deliver your lot, who receive the name and delivery address needed to complete the shipment.
  • Professional advisers and authorities — our accountants, insurers and legal advisers, and regulators, tax authorities or law-enforcement bodies where we are required to disclose information by law.

Where we source or authenticate stones through trade suppliers and independent gemmological laboratories, we share only what is needed to fulfil and verify an order — not your browsing activity.

6. International transfers

Some of our providers may process data outside the United Kingdom. Where they do, we make sure your data is protected by an adequacy decision or by appropriate safeguards (such as the UK International Data Transfer Agreement or Addendum), so that it receives a level of protection equivalent to that under UK law.

7. How long we keep your information

We keep your personal data only for as long as we need it. We retain your account details while your account is active and for a reasonable period afterwards. We keep records of transactions and invoices for at least six years to meet accounting and tax requirements, and any anti-money-laundering records for the period the law requires (generally five years after our relationship or the transaction ends). When we no longer need your data, we securely delete or anonymise it.

8. Your rights

Under UK data-protection law you have the right to:

  • ask for a copy of the personal data we hold about you;
  • ask us to correct data that is inaccurate or incomplete;
  • ask us to erase your data, or to restrict how we use it, in certain circumstances;
  • object to our processing where we rely on our legitimate interests;
  • ask us to transfer certain data to you or another provider (data portability); and
  • withdraw your consent at any time, where we rely on it.

To exercise any of these rights, please contact us using the details in section 1. We will not charge you and will respond within the time the law allows. Exercising your rights will not affect your ability to use the essential functions of the saleroom, though some rights are subject to legal limits — for example, records we must keep for tax or anti-money-laundering reasons.

9. Complaints

We hope to resolve any concern you raise. You also have the right to complain to the UK’s data-protection regulator, the Information Commissioner’s Office, at ico.org.uk or on 0303 123 1113. We would appreciate the chance to address your concern before you approach the ICO.

10. Security

We take the security of your data seriously. Access to your account is protected by authentication, passwords are stored only in hashed form, connections to the site are encrypted, and access to personal data within our systems is restricted to those who need it. Our especially sensitive details — such as bank information — are held under strict access controls and are never exposed to the public site.

11. Children

Scintessa is a saleroom for adults. It is not directed at children, and you must be at least 18 to register and bid. We do not knowingly collect personal data from children.

12. Changes to this policy

We may update this policy from time to time. When we make material changes we will update the date at the top of this page and, where appropriate, let you know. Please review it periodically.

13. Contact us

For any question about this policy or your personal data, please contact us at support@scintessa.com using the details in section 1.