Privacy policy
Short version: we do not want your personal data and we have gone out of our way not to collect it. The calculator runs entirely in your browser.
Who is responsible for your data
This site is operated by {{OPERATOR_NAME}}, registration {{OPERATOR_LEGAL_ID}}, at {{OPERATOR_ADDRESS}}. For anything in this policy, including requests to exercise your rights, write to {{CONTACT_EMAIL}}.
What we collect
There is no account system on this site. We do not ask for your name, email address, phone number or postal address, and there is nowhere on the site to give them to us.
What you type into the calculator never leaves your browser. The weight, unit and karat you enter are used by JavaScript running on your own device to do arithmetic against a published price file. Nothing is transmitted to us, stored on our servers, or logged. We could not tell you what anyone has ever calculated, because we never receive it.
Our web server keeps standard access logs, which is unavoidable for a site to function. These contain your IP address, the page requested, the time, your browser's user-agent string and the referring page. They are used for security and diagnostics, are not combined with any other data to identify you, and are retained for a limited period before deletion.
Cookies and third parties
We set one first-party cookie of our own, which records your cookie consent choice so we do not ask again on every page. It is strictly necessary and cannot be refused without breaking the consent mechanism itself. Full details are in our cookie policy.
Advertising
This site displays advertising served by Google and its partners. Google and third-party vendors use cookies to serve ads based on your prior visits to this and other websites, and Google's use of advertising cookies enables it and its partners to serve ads to you based on that activity. These cookies are only set after you consent.
- You can opt out of personalized advertising in Google's Ads Settings.
- You can opt out of some third-party vendors' use of cookies for personalized advertising at optout.aboutads.info.
- You can change or withdraw your consent on this site at any time using the link in the footer.
Analytics
If analytics are in use on this site, they load only after you consent to non-essential cookies, and they are listed in the cookie policy table. If that table lists no analytics cookie, none is running.
Affiliate links
Where we link to a gold buyer through an affiliate program, that link may set a tracking cookie belonging to the buyer or their affiliate network so a referral can be attributed to us. See our affiliate disclosure for the current status of those programs.
Legal basis, and your rights
If you are in the EEA or the United Kingdom
Under the GDPR and UK GDPR, we rely on your consent for advertising and analytics cookies, and on our legitimate interest in operating and securing the site for server logs and the strictly necessary consent cookie.
You have the right to:
- Access the personal data we hold about you
- Have inaccurate data corrected
- Have your data erased
- Restrict or object to processing, including profiling for advertising
- Receive your data in a portable format
- Withdraw consent at any time, without affecting prior processing
- Lodge a complaint with your national data protection authority
If you are in California
Under the CCPA as amended by the CPRA, you have the right to know what personal information is collected and how it is used, to request its deletion, to correct inaccurate information, and to opt out of the sale or sharing of personal information.
We do not sell personal information and we do not knowingly share it for cross-context behavioral advertising beyond the advertising cookies described above, which you can refuse outright. We will not discriminate against you for exercising any of these rights.
To exercise any right, email {{CONTACT_EMAIL}}. We may need to ask for information to confirm your request relates to you.
Children
This site is not directed at children under 16 and we do not knowingly collect their personal data. If you believe a child has provided us with personal data, contact us and we will delete it.
Retention and international transfers
Server logs are retained only as long as needed for security and diagnostics, then deleted. The consent cookie expires 180 days after your choice. We hold no other data to retain.
Our advertising partners are global and may process data in countries outside your own, including the United States. Where those transfers involve personal data of EEA or UK residents, the partners rely on their own safeguards, such as the European Commission's standard contractual clauses and the EU-US Data Privacy Framework.
Changes to this policy
If this policy changes materially — for example if we add analytics or activate an affiliate program — we will update this page and change the date below. Where the change requires it, we will ask for your consent again.
Last updated: {{LAUNCH_DATE}}