carathunter.com · launched 2026
The diamond price comparison that retailers wish did not exist.
Nearly 12 million diamonds tracked across 105 retailers in 25 countries. When the same certified stone appears at multiple stores, we show you every price, side by side.
- diamonds tracked
- 11.8M+
- retailers monitored
- 105+
- countries covered
- 25+
- avg lab-grown spread
- 86%
The problem.
Most online diamond retailers pull inventory from the same supplier networks. The exact same certified diamond, same GIA or IGI number, same physical stone, regularly appears at three, five, even ten different stores. Each retailer sets their own markup, and until recently, there was no practical way for a buyer to know. We saw a 2 carat G VS2 Round listed at one store for $18,000 and at another for $27,000. Identical stone. The only difference was the retailer. The diamond industry has operated on information asymmetry for decades, and the internet only partially fixed it. We built the tool we wished existed.
Completely independent.
We do not sell diamonds, take commissions, or run affiliate deals. Every retailer is treated the same way. When we show that a diamond is $4,000 cheaper at one store versus another, there is no incentive behind that other than giving you the information. Revenue comes from Carat Hunter Pass subscriptions, not from the retailers we track.
What it does.
Explorer
Search 11.8 million diamonds with filters for shape, carat, colour, clarity, cut, price, and origin. Sort by score, quality, or value.
Ask Lucy
Our AI diamond expert, named for Lucy in the Sky with Diamonds. Tell her what you are looking for in plain language and she searches, compares, and gives her honest opinion.
Visual Search
Paste a certificate number, retailer URL, or diamond specs and we find matching and similar stones across the entire database.
Compare side by side
Select up to five diamonds and compare them head to head with specs, scores, prices, and an AI analysis of the trade-offs.
Hunts
Automated searches that monitor the market for you. When a diamond matching your criteria appears or a price drops, we let you know.
Caratlytics Score
Every diamond gets a 0-to-100 score combining quality (35%), value (30%), certification (20%), and market factors (15%). A quick way to spot diamonds that punch above their weight.
How it works.
Our systems monitor more than 105 online diamond retailers around the clock, pulling inventory and pricing data from each. When the same certified diamond (matched by its GIA, IGI, or HRD certificate number) appears at more than one store, we flag it and show every price side by side. Natural, lab-grown, or both. Prices update daily. When a retailer changes their price, adds new inventory, or removes a listing, we pick it up. The result is a live picture of the diamond market that would take an individual buyer weeks to assemble by hand.
The tools that run it.
- Web framework
- Cloud infrastructure
- Production database
- Caching tier
- Large language models
- Edge CDN
live at
carathunter.com
Launched 2026. Owned and operated by Digital Adventures.
Ready to build?
Tell us what you're trying to ship. We'll scope it honestly.