Ministry of Gems — Gemmology & Gemstones MCP Tools

Ministry of Gems — Gemmology & Gemstones exposes 13 tools. Each one has its own page with the configuration for every client that can run this server.

define_gem_term

define gem term
search_gem_knowledge Read-only

search gem knowledge
list_gem_terms Read-only

list gem terms
verify_gem_passport

verify gem passport
search_gem_inventory Read-only

search gem inventory
sapphire_price_guide

sapphire price guide
gem_properties

gem properties
compare_gems

compare gems
birthstone_for_month

birthstone for month
gem_care_guide

gem care guide
get_gem_product Read-only

get gem product
lab_report_check

lab report check
faceup_size_estimate

faceup size estimate

This list was read from the server itself, by connecting to it and calling tools/list on 24 September 2026. It is what the server actually exposes, not what its listing claims.

Mutating and Read-only are read off each tool's name, not its schema — a hint, not a guarantee. The registry stores tool names only; connect the server for its live schemas.

Ministry of Gems — Gemmology & Gemstones MCP server