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100
MCP live MCP 2025-06-18 streamable-http

io.github.jacobiusmakes/diamond-mcp

io.github.jacobiusmakes/diamond-mcp

Sourced diamond and gemology tools for AI assistants, with 90 encyclopedia entries.

Watch this dependency Share evidence report
Uptime
100.0%
5 direct probes · 30d
Response
450ms
last probe
Tools
11
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://diamond-mcp.stienhardt.workers.dev/mcp
Score: 100/100
Handshake verified by our own probe.
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
11 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
11 items in total; 3 or more earns these points.
pass Describes itself 10/10
83 characters; more than 30 earns these points.

Tools · 11

compare_diamonds

Compare two to five diamonds from any seller using supplied carat, measured millimeters and prices. Returns ratios, price per carat, differences and missing information. Never verifies specifications,…

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. Supports GIA, IGI, and GCAL. This tool never verifies anything its…

faceup_size

Approximate face up millimeter dimensions for a diamond of a given shape and carat weight. Supported shapes: round, oval, emerald, dutch_marquise. Scales vetted 1 carat anchors by the cube root of the…

dutch_marquise_definition

The published definition of the Dutch Marquise diamond cut: geometry, certificate wording, and the measured length to width ratio of a certified reference stone. A Dutch Marquise is an elongated hexag…

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 date.

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 date.

define

Look up a single diamond or gemology term in the encyclopedia of 90 fact-checked and sourced entries. Matches the term exactly (case insensitive), then by a listed alias, then the best prefix or word …

search_encyclopedia

Keyword search across the 90 entry diamond and gemology encyclopedia. Ranks case insensitive keyword hits by field, weighting the term above the definition above the body. Returns the best matches as …

search_inventory

Search Stienhardt's public Shopify catalog of engagement ring settings and fine jewelry (New York, direct). Loose-diamond stock cannot be verified here; those searches return public catalog listings f…

get_product

Full detail for one Stienhardt product by id (as returned by search_inventory): title, price, availability, options, images, and the product URL on stienhardt.com. Loose-diamond availability is not ve…

How to use

Claude Desktop or claude.ai: add a custom connector (Customize → Connectors; on Team and Enterprise plans an owner adds it under Organization settings → Connectors) with this server URL: https://diamond-mcp.stienhardt.workers.dev/mcp

Cursor or Cline: add to your MCP config:

{
  "mcpServers": {
    "io.github.jacobiusmakes/diamond-mcp": {
      "url": "https://diamond-mcp.stienhardt.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}