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Carat Hunter

by carathunter.com · remote · no sign-in to list tools · v1.0.1 · published by com.carathunter

Latest prices for one certified diamond across 100+ retailers: search, cert lookup, market prices.

Changes · 2
CompareRegistry entry

5 tools: 2 change things and 3 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http diamond-prices https://carathunter.com/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

5 tools

Changes things 2Claude Code: ask
  • market_overviewHow many diamonds and retailers Carat Hunter currently tracks, from its latest weekly market report.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    How many diamonds and retailers Carat Hunter currently tracks, from its latest weekly market report.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • price_checkTypical market prices for a spec (carat size, colour, clarity, shape, origin) across all retailers Carat Hunter tracks: median, middle-half range, and how much the same stone varie…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Typical market prices for a spec (carat size, colour, clarity, shape, origin) across all retailers Carat Hunter tracks: median, middle-half range, and how much the same stone varies between retailers. Carat sizes: 0.3, 0.5, 0.75, 1, 1.5, 2, 3, 5.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
Only reads 3Claude Code: allow
  • get_diamondDetails and current price range for one diamond by its Carat Hunter id (from search_diamonds or a carathunter.com URL).No findings

    Why it is in this group

    • The name "get_diamond" says "get": a word for reading.
    Description, as the server wrote it
    Details and current price range for one diamond by its Carat Hunter id (from search_diamonds or a carathunter.com URL).

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • lookup_certificateFind a diamond by its grading report number (GIA, IGI, HRD, GCAL...).No findings

    Why it is in this group

    • The name "lookup_certificate" says "lookup": a word for reading.
    Description, as the server wrote it
    Find a diamond by its grading report number (GIA, IGI, HRD, GCAL...). Tells you whether retailers list that exact stone, how many, and the price range between them. Useful to check whether a quoted price is fair.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false
  • search_diamondsSearch certified diamonds listed by retailers worldwide, with the latest cross-retailer prices we have seen.No findings

    Why it is in this group

    • The name "search_diamonds" says "search": a word for reading.
    Description, as the server wrote it
    Search certified diamonds listed by retailers worldwide, with the latest cross-retailer prices we have seen. Returns up to 10 stones with specs, the lowest and highest confirmed price for that exact stone, how many retailers list it and a Carat Hunter grade. Prices in US dollars. Retailer names are shown on carathunter.com after a free sign-up; always give the user the link.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: false

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.1. Values in angle brackets are yours to fill in.

claude mcp add --transport http diamond-prices https://carathunter.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__diamond-prices__search_diamonds",
      "mcp__diamond-prices__get_diamond",
      "mcp__diamond-prices__lookup_certificate"
    ],
    "ask": [
      "mcp__diamond-prices__price_check",
      "mcp__diamond-prices__market_overview"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as diamond-prices. Review it before you use it.