Gemstone Tools — Birthstone Finder, Carat Calculator

Gemstone tools

This hub gathers the interactive utilities on the site. They are the fastest way to get an answer when a reader does not want to wade through a long article. A birthstone finder asks for a date and returns the right stone.

A carat calculator converts carats to millimeters for a round brilliant. A chakra matcher suggests a stone based on a few intention questions. The tools are written by the science editor so their outputs match the rest of the site’s stone data.

The interactive widgets ship as small vanilla JavaScript pieces that work on a phone without loading a framework.

Every tool explains its inputs, its method, and the sources behind the output. They do not collect personal data. They do not require an account.

Birthstone FinderEvery Month, Every Tradition, One

Carat CalculatorCarat Size Reference: What Does

Chakra MatcherStone Reference: Which Stones Work

Crystal Grid BuilderCrystal Grid Reference: Patterns, Stones,

Crystal QuizCrystal Recommendation Guide: Find Your

Mohs TesterMohs Hardness Reference: Identify a

Available Tools

What Each Tool Is For

Birthstone finder: enter a date, get modern and traditional birthstones with short context.
Crystal quiz: a handful of mood and intention questions, returns a suggested starting stone.
Carat calculator: converts carat weight to millimetre size for common cuts.
Mohs tester: explains the Mohs hardness scale and helps a reader estimate a stone’s hardness from safe scratch tests.
Chakra matcher: suggests a chakra and associated stones based on reported intentions.
Crystal grid builder: a visual layout tool for arranging stones in classic grid patterns.

Privacy

None of the tools collect personal information. Inputs stay in the browser and disappear when the tab closes. We do not email results, because we do not ask for an email address. This is intentional.

How the Tools Are Built

The tools are small vanilla JavaScript widgets that run entirely in the browser. They reference the same stone data that powers the rest of the site, so a stone named by a tool links directly to its full page.

When a tool’s logic depends on tradition, we link to the relevant hub page where that tradition is described in full.

Are the tool results medical advice?

No. Tools that touch healing or chakra content return traditional pairings only, not therapeutic recommendations.

Do the tools work on a phone?

Yes. They are designed mobile first and work without a framework.

Can I share a tool result?

Yes. Tool pages accept a share link that encodes the result into the URL so the recipient sees the same output.