The Diamond MCP MCP server,
connected in one click.
Sourced diamond and gemology tools for AI assistants, with 90 encyclopedia entries. Connect the official Diamond MCP MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.
Free to start · No credit card · No hosting needed
Add Diamond MCP to your AI in one minute
Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.
claude mcp add --transport http diamond-mcp https://diamond-mcp.stienhardt.workers.dev/mcpRun in your terminal, then restart Claude Code.
Diamond MCP · https://diamond-mcp.stienhardt.workers.dev/mcp
What your AI can do with Diamond MCP
Real prompts you can type the moment it's connected — no setup, no docs to read.
“Use “verify_diamond_report”: Returns the official verification URL and a three step checklist for confirming a diamond grading report with the lab that issued it. Suppor.”
“Use “faceup_size”: Approximate face up millimeter dimensions for a diamond of a given shape and carat weight. Supported shapes: round, oval, emerald, dutch_mar.”
“Use “dutch_marquise_definition”: The published definition of the Dutch Marquise diamond cut: geometry, certificate wording, and typical length to width ratio. A Dutch Marqui.”
“Use “lab_grown_grading_landscape”: The current state of who grades Lab Grown Diamonds and how: GIA, IGI, HRD Antwerp, and the FTC position. Every item carries a source and a d.”
How secure is the Diamond MCP MCP server?
Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Diamond MCP holds up.
Official endpoint
Operated by Diamond MCP (stienhardt.com) at its documented MCP endpoint — not a third-party mirror or community re-host.
No sign-in needed
This server only exposes public data — no account and no credentials are involved when you connect.
Scanned before it goes live
gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.
Watched for drift
If Diamond MCP adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.
Connected in three steps
Connect your gate
Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.
Pick Diamond MCP
Choose Diamond MCP in the gate directory. No sign-in needed.
Use it anywhere
Diamond MCP's tools are live in every AI client you've connected — with rules and logging built in.
Free to start · No credit card · No hosting needed
The actual tools Diamond MCP exposes
Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.
verify_diamond_report — Returns the official verification URL and a three step checklist for confirming a diamond grading report with the lab that issued it. Suppor
faceup_size — Approximate face up millimeter dimensions for a diamond of a given shape and carat weight. Supported shapes: round, oval, emerald, dutch_mar
dutch_marquise_definition — The published definition of the Dutch Marquise diamond cut: geometry, certificate wording, and typical length to width ratio. A Dutch Marqui
lab_grown_grading_landscape — The current state of who grades Lab Grown Diamonds and how: GIA, IGI, HRD Antwerp, and the FTC position. Every item carries a source and a d
lab_grown_price_index — The latest tracked retail price reading for Lab Grown Diamonds, with source and date. Market context for shoppers, not investment guidance.
about_stienhardt — Plain fact sheet about Stienhardt, the New York City Lab Grown Diamond brand that publishes this server. Every fact carries a source and a d
define — Look up a single diamond or gemology term in the encyclopedia of 90 adversarially fact-checked entries. Matches the term exactly (case insen
search_encyclopedia — Keyword search across the 90 entry diamond and gemology encyclopedia. Ranks case insensitive keyword hits by field, weighting the term above
+ 2 more tools once connected
Who runs the Diamond MCP MCP server?
The Diamond MCP MCP server at a glance
https://diamond-mcp.stienhardt.workers.dev/mcpQuestions, answered
Is there an official Diamond MCP MCP server?
Yes — Diamond MCP operates its own remote MCP server at diamond-mcp.stienhardt.workers.dev. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.
How do I connect Diamond MCP to Claude or ChatGPT?
Add gate's gateway URL to your AI client once, then pick Diamond MCP in the directory. No account or sign-in is needed. From then on, Diamond MCP's tools are available in every client you've connected to gate.
Do I need to host anything?
No. Diamond MCP runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.
Is the Diamond MCP MCP server safe to connect?
It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.
Is it free?
Yes — you can get started with gate for free and connect Diamond MCP in minutes. No credit card required.
Connect more than just Diamond MCP
Every server below works through the same gateway URL — connect once, add tools anytime.
Squarespace DomainsDesignView →Set up Diamond MCP in: Claude · Claude Code · ChatGPT · Cursor · VS Code