CaratHunter

Same diamond. Different prices. We help you find the best deal.

Compare prices across 100+ diamond retailers worldwide

Ask Lucy Visual Search Diamond Explorer Diamond Education Insights Cert Decoder Best by Budget

See it in action

The same certified diamond can vary by thousands across different retailers. Here are some real live examples.

1.1ct Round G IF EX

GIA Certified · Natural

Sarvada Jewels$4,246

Seattle Diamonds$4,437

Baunat/BNT Diamonds$4,505

B2C Jewels$5,200

Yorxs$6,377

Save $2,131 (50.2%)vs most expensive

View Full Comparison→

2.38ct Princess D VVS2 EX

IGI Certified · Lab Grown

B2C Jewels$986

Flawless Fine Jewelry$1,190

Taylor and Hart$1,539

Save $553 (56.1%)vs most expensive

View Full Comparison→

Pass holders see all retailer names and exact prices

How It Works

Four steps to finding your diamond for less.

Search your way

Paste a retailer URL, type what you want in plain English, explore with filters, use visual search, or ask Lucy our AI diamond expert.

Compare across retailers

We match the same certified diamond across 100+ retailers worldwide so you can compare your options side by side.

Diamonds scored by Caratlytics

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.

Choose with confidence

Compare prices, scores, and retailer options in one place. Average savings of $1,129 on a 1ct diamond when you shop around.

Meet Lucy

Your AI diamond expert. Search, compare, and find the best deal in conversation.

Lucy

Carat Hunter AI

Example conversation. Free users get diamond education. Pass holders get personalised search and deal-finding.

Independent

Unbiased results powered by data, not commissions. Each retailer we track is scored the same way.

Global Coverage

115+ retailers across 25+ countries. One search covers them all.

Updated Daily

Prices refreshed every day. Never miss a price drop.

21.7M+

Diamonds tracked

5.3M+

Cross retailer matches

115+

Retailers monitored

25+

Countries covered

Want full access? See our plans→

Latest from Lucy

Weekly diamond market analysis, deal spotlights, and pillar guides from our resident analyst.

Pillar

The Retailer Markup Leaderboard Methodology and What 110 Retailers Look Like Side by Side

CaratHunter tracks 14 million diamond listings across 110 retailers and publishes a markup leaderboard built from cert matched stone comparisons. This is the full methodology: how we identify matched stones, why we use the median, and where the data is thin enough to warrant scepticism.

8 min read

Deep Dive

Lab Grown Pears Just Jumped 73% and You Should Probably Wait

Lab-grown pear shapes in the 1.00 to 1.24ct range spiked 72.71% in seven days while the broader lab-grown market fell. With a cross-retailer spread exceeding 100%, the real opportunity isn't chasing the median. It's shopping smarter.

6 min read

Cluster

What 'Uncertified' Really Means and Why We Penalise It

Over 433,000 diamonds in our live index carry no independent certification. The retailer graded them, priced them, and that's where the verification ends. We break down the structural conflict of interest, the pricing patterns we observe, and why the Caratlytics Score applies a heavy penalty.

7 min read

Deal Spotlight

Cushion Cuts Are in Freefall and Nobody's Talking About It

Natural diamonds dropped nearly 8% this week while cushion cuts declined across every carat range we track. Cross-retailer spreads on lab-grown pears hit 107%, and marquise diamonds are 85% cheaper in lab-grown than natural. The value pockets are wide open.

6 min read

Weekly Brief

Natural diamonds dropped 8% this week and the bargains are getting ridiculous

Natural diamond prices fell 8.4% this week while lab-grown ticked up 1.5%. Supply surges, massive cross-retailer spreads, and a widening gap between the two markets mean buyers who compare are saving thousands.

5 min read

Cluster

GIA vs IGI for Lab-Grown Diamonds as the Price Gap Closes in 2026

IGI grades over 90% of lab-grown diamonds in our index. GIA has been pushing into lab-grown grading, but the price premium for a GIA lab-grown diamond cert has been shrinking all year. We break down exactly where the gap stands and which buyers should care.

5 min read

All Lucy's posts→

Explore the guides

Hand-built guides that cover the questions every diamond shopper actually asks.

The 4Cs Explained

Cut, colour, clarity, carat. What actually matters and where to spend your budget.

Diamond Shapes

Round, oval, cushion, princess and seven more. How shape changes price per carat.

Lab vs Natural

The 86.8% spread, why it exists, and which option fits your budget.

Estimate a Diamond

Live market price for any 4C combination across 100+ retailers.

Top Value Picks

Our highest-scoring stones for raw value, refreshed every hour.

Diamonds Under $50K

What a $50,000 budget really gets you in the current market.

Diamond market analysis

Editorial analysis grounded in our index of certified diamonds across more than 100 retailers

Diamond Insights Blog

Weekly market analysis and deal spotlights from Lucy.

Cert Decoder

Find a hidden certificate number from the specs you can see.

Best by Budget

Three curated picks at three price tiers within your budget, ranked by the Caratlytics score.

Decode any diamond certificate

Find a redacted or hidden cert number from the diamond's specs. Free, no sign-up.

GIA Decoder IGI Decoder HRD Decoder AGS Decoder GCAL Decoder All Labs

Find every retailer for any spec

Thousands of live pages covering each shape, carat, colour and clarity combination. Plus side-by-side comparisons of every major retailer pair.

Where to Buy by Spec

For every popular spec combination, every retailer currently stocking it. Ranked by inventory count, updated daily.

Compare Retailers

Side-by-side comparisons of every major retailer pair with non-zero overlap. Facts only, no per-retailer pricing claims.

Carat Hunter Analysis

Editorial analysis, real data

Original analysis backed by our index of 22 million certified diamonds tracked across 115+ retailers worldwide. AI-assisted, methodology disclosed.

Latest analysis

Editorial analysis from the Carat Hunter index

Cohort-level diamond market analysis backed by our index of certified listings.

Read the analysis→

All analysis

Browse the analysis index

Cohort analyses on cross-retailer pricing, certification grading, lab-grown vs natural spreads, and more. AI-assisted, editor-reviewed, refresh dates on every piece.

Browse all→

Take Carat Hunter with you

The full diamond search, Lucy and instant hunt alerts on your phone, free for iPhone and Android.

More about the app→