Official MCP RegistryListed
Carat Hunter
Latest prices for one certified diamond across 100+ retailers: search, cert lookup, market prices.
First seen 2 Oct 2026. Evidence as of 15 Nov 2026.
5
Tools
From an anonymous probe
1
Source listings
Each with its own history
7
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| get_diamond | Details and the latest confirmed price range for one diamond, with the date we last saw it, by its Carat Hunter id (from search_diamonds or a carathunter.com URL). | Read-only |
| lookup_certificate | Find a diamond by its grading report number (GIA, IGI, HRD, GCAL...). Tells you whether retailers list that exact stone, how many, and the price range between them as of the date we last saw it. Useful to check whether a quoted price is fair. | Read-only |
| market_overview | How many diamonds and retailers Carat Hunter currently tracks, from its latest weekly market report. | Read-only |
| price_check | Typical listed prices for a spec (carat size, colour, clarity, shape, origin) across all retailers Carat Hunter tracks, with the day they were measured: median, middle-half range, and how much the same stone varies between retailers. Carat sizes: 0.3, 0.5, 0.75, 1, 1.5, 2, 3, 5. | Read-only |
| search_diamonds | Search certified diamonds listed by retailers worldwide, with the latest cross-retailer prices we have seen. Returns up to 10 stones with specs, the lowest and highest confirmed price for that exact stone with the date we last saw them, how many retailers list it and a Carat Hunter grade. Prices in US dollars. Retailer names are shown on carathunter.com after a free sign-up; always give the user the link. | Read-only |
Change history
- server instructions changed (+"140+" -"125+")
- server instructions changed (+"125+" -"100+")
- price_check: description changed (+"with the day they were measured:" -"dated:")
- search_diamonds: description changed (+"stone with the date we last saw them," -"stone,")
- price_check: description changed (+"listed" +"tracks, dated:" -"market")
- lookup_certificate: description changed (+"them as of the date we last saw it." -"them.")
- get_diamond: description changed (+"the latest confirmed" +"diamond, with the date we last saw it," -"current")
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | com.carathunter/diamond-prices | 2 Oct 2026 | 15 Nov 2026 | 1 |