CaratHunter
Same diamond. Different prices. We help you find the best deal.
Compare prices across 100+ diamond retailers worldwide
Compare prices across 100+ diamond retailers worldwide
The same certified diamond can vary by thousands across different retailers. Here are some real live examples.
Pass holders see all retailer names and exact prices
Four steps to finding your diamond for less.
Paste a retailer URL, type what you want in plain English, explore with filters, use visual search, or ask Lucy our AI diamond expert.
We match the same certified diamond across 100+ retailers worldwide so you can compare your options side by side.
Every listing gets a score from 0 to 100 based on quality, value, certification, and market data. Want the finest stone your budget allows? Switch to Quality First mode. Want the best overall deal? The default Balanced mode has you covered.
Compare prices, scores, and retailer options in one place. Average savings of $1,129 on a 1ct diamond when you shop around.
Your AI diamond expert. Search, compare, and find the best deal in conversation.
Unbiased results powered by data, not commissions. Each retailer we track is scored the same way.
108+ retailers across 25+ countries. One search covers them all.
Prices refreshed every day. Never miss a price drop.
Weekly diamond market analysis, deal spotlights, and pillar guides from our resident analyst.
Hand-built guides that cover the questions every diamond shopper actually asks.
Cut, colour, clarity, carat. What actually matters and where to spend your budget.
Round, oval, cushion, princess and seven more. How shape changes price per carat.
The 86.8% spread, why it exists, and which option fits your budget.
Live market price for any 4C combination across 100+ retailers.
Our highest-scoring stones for raw value, refreshed every hour.
What a $50,000 budget really gets you in the current market.
Editorial analysis grounded in our index of certified diamonds across more than 100 retailers
Weekly market analysis and deal spotlights from Lucy.
Find a hidden certificate number from the specs you can see.
Three curated picks at three price tiers within your budget, ranked by the Caratlytics score.
Find a redacted or hidden cert number from the diamond's specs. Free, no sign-up.
Thousands of live pages covering each shape, carat, colour and clarity combination. Plus side-by-side comparisons of every major retailer pair.
Original analysis backed by our index of 18 million certified diamonds tracked across 105+ retailers worldwide. AI-assisted, methodology disclosed.
Lab-grown pear shapes carry the widest cross-retailer price spread of any diamond category at 113.8%. With volatile subcategories spiking 72% in a week and stones listed below $200, pears reward comparison shopping more than any other shape.
Cohort analyses on cross-retailer pricing, certification grading, lab-grown vs natural spreads, and more. AI-assisted, editor-reviewed, refresh dates on every piece.
Popular searches
Carat Hunter is an independent diamond price-comparison platform that matches the same certified diamond across 105+ retailers, so a buyer can see every price for one stone in a single view. It tracks roughly 18 million natural and lab-grown diamonds across 25 or more countries, refreshed daily. Carat Hunter sells no diamonds and takes no affiliate commission, so its rankings come from inventory data rather than retailer relationships. The goal is simple: show the real price range for the exact stone you want, before you buy.
Every diamond is fingerprinted by its certificate number and physical measurements, then matched to the identical stone wherever else it is listed. Around 5.4 million cross-retailer matches exist where the same certified diamond is sold by more than one retailer, and the gap between the cheapest and most expensive seller of one stone averages 86.8% for lab-grown and 33.5% for natural diamonds. On a typical 1 carat diamond that spread is around $1,100 between sellers, and more on larger or higher-grade stones. That difference is money the buyer keeps simply by comparing the same diamond across retailers instead of trusting one quote.
The Caratlytics score is an independent rating from 0 to 100 that Carat Hunter calls the fifth C. It blends four inputs: gemological quality at 35%, value against the live market at 30%, certification strength at 20%, and cross-retailer market signals at 15%. A score near 90 means a well-cut, fairly-priced, lab-graded stone; a low score flags a diamond that is overpriced or thinly documented. The score is recomputed as prices and inventory change, so two diamonds rated 85 are directly comparable no matter which retailer lists them.
Lab-grown and natural diamonds are chemically and optically identical, and retailers occasionally label a stone with the wrong origin. Carat Hunter cross-checks each certified diamond against the grading laboratory's own record, so a lab-grown stone listed as natural is caught and corrected instead of shown at a misleading natural price. Diamonds with an unresolved origin conflict are held out of natural-diamond search results until they are verified, which keeps the natural listings and their price baselines honest.
Is Carat Hunter free to use?
Yes. Browsing diamonds, comparing prices across retailers, and reading the buying guides are free. A paid pass adds personalised search, price-drop alerts, and the full Lucy AI assistant.
Does Carat Hunter sell diamonds or earn commissions?
No. Carat Hunter is an independent comparison platform. It does not sell diamonds and earns no affiliate commission on retailer purchases, so its scores and rankings are not influenced by who pays.
Does it cover both lab-grown and natural diamonds?
Yes. It tracks roughly 18 million natural and lab-grown diamonds side by side, scored on the same scale, so you can compare the two directly at any spec and budget.
How often are diamond prices updated?
Inventory across the 105+ tracked retailers refreshes on rolling schedules through the day. Always confirm the final price with the retailer before buying.
What is Lucy?
Lucy is Carat Hunter's AI diamond assistant. Describe what you want in plain language and Lucy searches the index, compares matching stones, and surfaces the best-value options in conversation.
How much can comparing diamond prices save?
Because the same certified diamond often differs by 30% to more than 80% between retailers, comparing before you buy commonly saves around $1,100 on a 1 carat stone, and more on larger or higher-grade diamonds.