Privacy Policy
Last updated: 14 October 2026
Trader - Stella 56 ("Stella 56") is a web app that diamond wholesalers use to run their business: stock, invoices and memos, payments, expenses and profit. Stella 56 Diamonds ("we", "us") operates it at trader.stella56diamonds.com. This policy explains what Stella 56 collects, why, who else handles it, how long we keep it and what you can do about it.
In short: we collect what we need to run your account and your books. We never sell your data, never use it for advertising, and never show your costs to buyers. If you sign in with Google, we receive only your name, email address and profile picture, and use them only to create your account, sign you in, and link the app's usage analytics to your account.
What we collect
- Your account. Your name and email address, and your password if you choose one. Clerk, our sign-in provider, holds these.
- Your Google account details, if you sign in with Google: your name, email address and profile picture. See Google user data.
- Your business records. What you enter: stock (bundles, certificates, costs, locations), invoices and memos, payments and cheques, cash and bank entries, expenses, and your business profile (name, address, phone, email, website and tax ID) for your documents.
- Your clients' and suppliers' details. The names, phone numbers, email addresses and addresses you enter for the businesses you trade with, and for the people at them: each person's name, role, phone number and email address.
- Buyers' details. When a buyer opens one of your share links, the name, phone and business they give, and any questions they send about your stones.
- How the app is used. Pages opened, actions taken, errors, the app's version, and device details such as browser, operating system and screen size, through PostHog analytics. Analytics cookies are set, and sessions recorded, only if you allow them. A recording shows the pages you used and where you tapped, with everything you type and all text on screen hidden.
- Notification settings. If you turn on notifications on a device, the address your browser gives us for sending them.
We don't collect payment card or bank account details: Stella 56 records that a payment happened, not the account it came from.
Google user data
You can sign in to Stella 56 with your Google account, or with an email address and password. If you choose Google, this is how we treat what Google shares with us:
- What we access. Your name, email address, profile picture and Google account ID, through Google's basic sign-in permissions (openid, email and profile). Stella 56 does not ask for, and cannot read, your Gmail, Google Drive, Contacts, Calendar or any other Google data.
- How we use it. Only to create your Stella 56 account, sign you in, show your name and email in the app, write to you about your account, and link the app's usage analytics to your account. We never use it for advertising, never sell it, and never use it to train AI or machine-learning models.
- How we store it. Clerk, our sign-in provider, stores it for us, encrypted in transit and at rest. Our own database keeps only an account ID that links your business records to your sign-in.
- Who we share it with. Clerk, to sign you in, and PostHog, our analytics provider, which receives your name and email address so that usage records are tied to your account. No one else, unless the law requires it.
- How long we keep it, and how to delete it. For as long as your account is open. Delete your account in Settings → Account → Delete account, and your Google details are deleted with it 7 days later; if you can't sign in, write to privacy@stella56diamonds.com from its email address and we delete them within 30 days. You can also remove Stella 56's access to your Google account at any time at myaccount.google.com/permissions; Google then asks you again the next time you choose Continue with Google.
Stella 56's use and transfer to any other app of information received from Google APIs will adhere to the Google API Services User Data Policy, including the Limited Use requirements.
How we use information
- To run your account and your books: keeping stock, trades, balances and profit, and making your invoices, memos and statements.
- To sign you in and keep your account secure, for example by asking for a code by email when you sign in on a new device.
- To send the notifications you turn on, such as a payment falling due or a buyer's question.
- To show your stock to the buyers you choose, through Field mode and share links.
- To understand which parts of the app are used, and to find and fix what breaks.
- To answer you when you write to us, and to tell you about important changes to Stella 56.
We don't sell your information, use it for advertising, or build profiles of you for anyone else.
Buyers and share links
When you send a buyer a share link, they see only what you chose to show: each stone's code, grade, size, shape, colour and certificate, a certified stone's weight, and, if you turn them on, a parcel's weight, the asking price and the location. They also see your business's name and phone. They never see your costs, margins, suppliers, notes or what any client owes.
If the link asks, a buyer gives a name, a phone number and, optionally, a business before seeing any stones, and can send you questions about them. You decide what to collect and what to do with it; we keep it for you.
To stop abuse we keep a one-way scrambled (hashed) form of a buyer's IP address, never the address itself, and set a cookie that recognises a returning buyer on that link. A link stops working when it expires or when you revoke it.
If you are a trader's client, supplier or buyer
The trader you deal with decides what details of yours to keep in Stella 56, and is responsible for them; we store and process them on the trader's instructions. To see, correct or remove your details, ask that trader. You can also write to us, and we will pass your request on and help where we can.
Storage and security
- Each business's records are private to it: every request to our server checks that what it reads or changes belongs to the business that is signed in.
- Information travels encrypted (HTTPS), and our providers encrypt it where they store it.
- Sign-in is protected by Clerk: verified email addresses, codes by email for new devices, and bot protection on sign-up.
- No system is perfectly secure. If a breach affects your information, we will tell you without undue delay.
How long we keep information
- Your account and business records: while your account is open. When you delete your account in Settings → Account → Delete account, we keep them 7 days, so that signing in and choosing Keep can cancel it, and then delete them. If you can't sign in, ask at privacy@stella56diamonds.com and we delete them within 30 days.
- Buyers' details: a buyer who never gave a name, 30 days after their last visit; any buyer's visit record, one year; questions flagged as spam, 30 days. Other questions stay in your account until it is deleted.
- Usage analytics: deleted from PostHog when your account is deleted. Session recordings: 30 days.
- Request logs: up to 7 days, at Cloudflare.
- Notification devices: until you remove the device in Settings, or its browser stops accepting notifications.
Your choices and rights
- See and export your data. Settings → Your data exports your stock, trades, payments, expenses, clients and suppliers as CSV files, and any invoice, memo or statement can be saved as a PDF.
- Correct it. Edit your records and business profile in the app, or write to us.
- Delete it. Settings → Account → Delete account deletes your account and everything in it 7 days after you ask; until then, signing in and choosing Keep cancels it. If you can't sign in, write to privacy@stella56diamonds.com from your account's email address. In the app you can also archive contacts, revoke share links and remove notification devices.
- Change your cookie choice. Cookie settings, at the foot of this page and of the home page, or Settings → Your data → Cookies once you are signed in, asks again.
- Remove Stella 56's access to your Google account. At myaccount.google.com/permissions.
- Your legal rights. Depending on where you live (for example under the GDPR in Europe or the CCPA in California), you may have the right to access, correct, delete, restrict, object to or move your personal information, and to complain to a data protection authority. Write to us and we will answer within 30 days.
We don't sell personal information or share it for cross-context behavioural advertising.
Children
Stella 56 is a tool for businesses and isn't meant for anyone under 18. We don't knowingly collect information from children.
Changes to this policy
When we change this policy we update the date at the top. If a change matters to how your information is used, we tell you in the app or by email before it takes effect.
Contact
Write to privacy@stella56diamonds.com about this policy or your information. Stella 56 is operated by Stella 56 Diamonds at trader.stella56diamonds.com.
For AI agents and tools: the full version of this page, with more detail, is at /privacy.md, and /llms.txt lists every page like it.