Carat Hunter

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

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

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "Carat Hunter": {
      "url": "https://carathunter.com/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (5)

• search_diamonds read-only

  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 with the date we last saw them, 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.

  Parameters:

  • page — integer
  • sort — string
  • shape — string
  • colour — array — e.g. ["E","F","G"]
  • origin — string
  • clarity — array
  • max_carat — number
  • min_carat — number
  • max_price_usd — number
  • min_price_usd — number

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• get_diamond read-only

  Details and the latest confirmed price range for one diamond, with the date we last saw it, by its Carat Hunter id (from search_diamonds or a carathunter.com URL).

  Parameters:

  • id (required) — integer

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• lookup_certificate read-only

  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 as of the date we last saw it. Useful to check whether a quoted price is fair.

  Parameters:

  • certificate_number (required) — string

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• price_check read-only

  Typical listed prices for a spec (carat size, colour, clarity, shape, origin) across all retailers Carat Hunter tracks, with the day they were measured: 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.

  Parameters:

  • carat (required) — number
  • colour (required) — string
  • clarity (required) — string
  • shape (required) — string
  • origin (required) — string

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

• market_overview read-only

  How many diamonds and retailers Carat Hunter currently tracks, from its latest weekly market report.

  Hints: read-only yes · destructive not declared · idempotent not declared · open-world no

Publisher website

Measured by MCPYP probing. Untested fields are omitted, never estimated. Listing is always free; MCPYP never proxies calls or stores user tokens.