Privacy Policy

Last updated 2026-08-26. This policy explains what data Gem Index does and does not collect.

Summary

Gem Index is a static website with no user accounts and no server-side database of your inputs. The stone attributes you enter and the estimates you generate are processed in your browser and are not transmitted to or stored by us.

Information we collect

• We do not collect names, email addresses or account details, because there are no accounts. If you email us, we receive whatever you choose to send.
• Aggregate technical data. Like most sites, our host and third-party services may process standard technical information (such as IP address, browser type and pages visited) to serve and secure the site.

Cookies and advertising

Gem Index displays advertising through Google AdSense. Google and its partners use cookies and similar technologies to serve ads based on your prior visits to this and other websites.

• Google's use of advertising cookies enables it and its partners to serve ads to you based on your visits to this site and/or other sites on the internet.
• You may opt out of personalised advertising by visiting Google Ads Settings.
• You can also opt out of third-party vendor cookies at aboutads.info/choices.
• Third-party vendors, including Google, use cookies to serve ads based on prior visits to this website.

Analytics

We may use privacy-respecting analytics to understand aggregate traffic. This data is not used to identify individual visitors.

Children

Gem Index is a general-audience informational tool and is not directed at children under 13, and we do not knowingly collect data from them.

Your choices

You can block or delete cookies in your browser settings and use the ad-personalisation opt-outs linked above. Because we store no personal profile, there is no account to delete.

Changes

We may update this policy; material changes will be reflected in the "last updated" date above.

Contact

Privacy questions: hello@gemindex.world.