Gemology & gemmology: 215 FGAA terms, 25 handbooks, live gem stock, signed passport verification.
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https://mog-concierge.33guruge.workers.dev/mcp13 tools · 222msdefine_gem_termLook 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.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.
| Parameter | Type | Description |
|---|---|---|
| term* | string | The gemmological term to define. |
search_gem_knowledgeKeyword 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.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.
| Parameter | Type | Description |
|---|---|---|
| query* | string | Search query. |
| limit | integer | Max results (default 5, max 20). |
list_gem_termsList 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.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.
| Parameter | Type | Description |
|---|---|---|
| section | string | Optional section filter, e.g. "Treatments & Enhancement". |
verify_gem_passportCryptographically 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, tr…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, tr…
| Parameter | Type | Description |
|---|---|---|
| stone_id* | string | Stone ID as printed on the passport or product page, e.g. "12322", "RUBY-B0797", "80067". |
search_gem_inventorySearch 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 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…
| Parameter | Type | Description |
|---|---|---|
| query | string | Free text, e.g. "unheated ceylon blue sapphire", "australian opal pendant", "teal sapphire ring". |
| type | string | Optional: gems | ring | pendant | earrings | bracelet | jewellery. |
| min_carat | number | — |
| max_carat | number | — |
| min_price_aud | number | — |
| max_price_aud | number | — |
| in_stock_only | boolean | Default true. |
| limit | integer | Max results, default 8, max 25. |
sapphire_price_guideWhat 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 hous…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 hous…
| Parameter | Type | Description |
|---|---|---|
| origin | string | Optional: "Australian" or "Ceylon". |
| carat | number | Optional carat weight to select the matching band. |
gem_propertiesMohs 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, "tsavor…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, "tsavor…
| Parameter | Type | Description |
|---|---|---|
| species* | string | Species or trade name, e.g. "sapphire", "diamond", "opal". |
compare_gemsSide-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".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".
| Parameter | Type | Description |
|---|---|---|
| gem_a* | string | — |
| gem_b* | string | — |
birthstone_for_monthThe 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.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.
| Parameter | Type | Description |
|---|---|---|
| month* | string | "September", "sep" or "9". |
gem_care_guideWhether 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.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.
| Parameter | Type | Description |
|---|---|---|
| gemstone* | string | — |
get_gem_productFull 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.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.
| Parameter | Type | Description |
|---|---|---|
| handle* | string | Product handle (e.g. "blue-australian-sapphire-1-47ct-oval-80062") or full product URL. |
lab_report_checkThe 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 unre…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 unre…
| Parameter | Type | Description |
|---|---|---|
| lab* | string | Laboratory name or acronym, e.g. "GIA", "GRS", "SSEF". |
| report_number | string | — |
faceup_size_estimateApproximate 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, em…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, em…
| Parameter | Type | Description |
|---|---|---|
| species | string | e.g. sapphire, diamond, spinel, emerald, opal (default diamond). |
| shape | string | default round |
| carat* | number | — |
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Gemology & gemmology: 215 FGAA terms, 25 handbooks, live gem stock, signed passport verification.
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