MCP server

Ministry of Gems — Gemmology & Gemstones Official

au.com.ministryofgems/gemmology

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

Gemology & gemmology: 215 FGAA terms, 25 handbooks, live gem stock, signed passport verification.

Working at last checkVerified publisher: ministryofgems.com.auAbout 2,074 tokens per request once connected13 tools

Website

https://mog-concierge.33guruge.workers.dev/mcp

At a glance

Type: MCP server
Publisher: ministryofgems.com.au (verified by the MCP Registry)
Status: Working at last check
Tools: 13
Token cost: About 2,074 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http gemmology https://mog-concierge.33guruge.workers.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.gemmology]
url = "https://mog-concierge.33guruge.workers.dev/mcp"

Gemini CLI

{"mcpServers":{"gemmology":{"httpUrl":"https://mog-concierge.33guruge.workers.dev/mcp"}}}

Cursor

{"mcpServers":{"gemmology":{"url":"https://mog-concierge.33guruge.workers.dev/mcp"}}}

VS Code

{"servers":{"gemmology":{"type":"http","url":"https://mog-concierge.33guruge.workers.dev/mcp"}}}

Antigravity

agy mcp add gemmology https://mog-concierge.33guruge.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"gemmology","server_url":"https://mog-concierge.33guruge.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"gemmology","server_url":"https://mog-concierge.33guruge.workers.dev/mcp"}

Tools

birthstone_for_month ~114 tokens
The modern and traditional birthstones for a month, from the FGAA-reviewed table, with a link to The Birthstone Handbook for history, treatments to expect and buying guidance. Accepts a month name or number.
compare_gems ~114 tokens
Side-by-side physical properties of two gem species with a plain verdict on which is harder, and a note on toughness — the half of durability the hardness scale does not show. Good for "sapphire or diamond for an everyday ring".
define_gem_term ~134 tokens
Look up a gemmological term in The Gem Lexicon of Ministry of Gems — 215 definitions verified by an FGAA-qualified gemmologist. Returns the definition, its subject section, and a citable anchor URL. Use for terms such as padparadscha, corundum, parti sapphire, unheated, or asterism.
faceup_size_estimate ~190 tokens
Approximate face-up millimetre dimensions for a stone of a given species, shape and carat weight — and, unlike diamond-only calculators, corrected for specific gravity, so a 2 ct sapphire, spinel, emerald or opal is sized correctly rather than as if it were diamond. Shapes: round, oval, cushion, eme
gem_care_guide ~112 tokens
Whether warm soapy water, an ultrasonic cleaner or a steam cleaner is safe for a given gemstone, plus everyday-wear notes, from the FGAA-reviewed care table. Covers sapphire and ruby, diamond, emerald, opal, pearl, tanzanite, tourmaline and more.
gem_properties ~155 tokens
Mohs hardness, refractive index, specific gravity, birefringence and crystal system for a gem species (diamond, corundum/sapphire/ruby, emerald, spinel, opal, tourmaline, garnet, quartz and more), from the FGAA-reviewed Gem Data Tables. Accepts trade names — "sapphire" resolves to corundum, "tsavori
get_gem_product ~142 tokens
Full detail for one Ministry of Gems product by handle or URL: specifications, description, price in AUD, availability, variants, images, the Digital Gemstone Passport link for loose stones, and a direct checkout link. Use after search_gem_inventory.
lab_report_check ~178 tokens
The issuing laboratory's own verification page and a four-step checklist for confirming a gemstone or diamond grading report — GIA, IGI, GRS, SSEF, Gübelin, AGL, Lotus, GIT, HRD, GCAL and others, including the coloured-stone laboratories diamond tools omit. Explains what "FGAA" means and flags unrec
list_gem_terms ~106 tokens
List the gemmological terms available in The Gem Lexicon, optionally filtered to one subject section. Use this to discover what can be defined before calling define_gem_term.
sapphire_price_guide ~174 tokens
What natural sapphires actually cost per carat in Australian dollars, from Ministry of Gems' published price guide: bands by origin (Australian, Ceylon) and size, with the stone count behind each band and the date the bands were computed. Answers "how much is a 2 carat sapphire" honestly, as a house
search_gem_inventory ~295 tokens
Search the live Ministry of Gems catalogue of natural loose gemstones and finished jewellery — Ceylon and Australian sapphires, rubies, spinels, Australian opals, emeralds and more — with prices in Australian dollars, availability, carat weight and a link to buy. Filter by type (gems, ring, pendant,
search_gem_knowledge ~153 tokens
Keyword search across the Ministry of Gems gemmological reference library — 215 lexicon definitions and 25 full-length buyer's handbooks, searched in full text across every section. Returns ranked results, each with the matched passage and a citable URL that deep-links to the chapter.
verify_gem_passport ~207 tokens
Cryptographically verify a Ministry of Gems Digital Gemstone Passport by stone ID. Recomputes the SHA-256 digest of the signed record and checks its Ed25519 (EdDSA) signature against the house public key, then returns the attested record: species, carat, dimensions, cut, colour, clarity, origin, tre

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