CaratHunter

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

Compare prices across 100+ diamond retailers worldwide

Ask LucyVisual SearchDiamond ExplorerDiamond EducationInsightsCert DecoderBest by Budget

See it in action

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

0.83ct Round E IF EX
GIA Certified · Natural
Ting Diamond$3,469
Sarvada Jewels$3,481
Diamond Exchange Canada$3,928
Flawless Fine Jewelry$4,102
77 Diamonds$4,410
Save $1,522 (43.9%)vs most expensive
View Full Comparison→
2.24ct Round D IF EX
GIA Certified · Lab Grown
Diamonds for Less$1,456
B2C Jewels$1,870
Moon Ocean$2,226
Save $770 (52.9%)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.

1
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.

2
Compare across retailers

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

3
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.

4
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

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

Updated Daily

Prices refreshed every day. Never miss a price drop.

23.8M+
Diamonds tracked
5.3M+
Cross retailer matches
105+
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.

Cluster

Eye-Clean Diamonds, How to Find SI1 Stones That Look Like VS1

An eye-clean SI1 can cost 25 to 40 percent less than a VS1 with identical specs, yet look identical at arm's length. The question isn't whether to buy SI1; it's which SI1 stones actually pass the test. This guide walks the four factors that matter, the GIA plot workflow, and the shapes where this strategy works and where it doesn't.

6 min read
Deal Spotlight

Natural Radiant Cuts Are Priced Below Median Across the Board Right Now

Natural 0.90ct F radiant cuts are listing between $627 and $1,238 on the open market right now, for stones with identical specifications. Lab-grown rounds carry a 60.7% cross-retailer spread, meaning the retailer you choose can cost as much as a carat upgrade. Two markets are moving in opposite directions, and both have specific opportunities worth acting on this week.

6 min read
Weekly Brief

Small rounds surged 60% while big cushions quietly collapsed

Natural diamonds dipped 0.88% this week while lab-grown gained 2.72%, the first time in a month both markets moved in opposite directions simultaneously. Small natural rounds jumped over 60% in certain categories while large cushion cuts fell nearly 40% and lab-grown rounds in the same size range dropped 50% over the past month. Cross-retailer spreads on natural rounds remain at 56%, meaning buyers who compare are consistently finding major savings on identical stones.

6 min read
Deep Dive

The radiant market is splitting in half

Natural radiant cut diamonds are moving in opposite directions this week. Stones under 0.5ct in the N+ colour tier climbed 41% in seven days while 2ct to 2.5ct H-I radiant cuts fell nearly 49%. The spread tells a precise story about which end of the market to target and which to avoid.

6 min read
Cluster

Diamond Fluorescence, When the Blue Glow Saves You Money

The Strong fluorescence discount on D to H colour diamonds runs up to 15 percent, but most of those stones look identical to their more expensive counterparts. Knowing which colour range benefits from fluorescence and which doesn't, and how to inspect a stone before you buy, separates buyers who capture that discount from buyers who simply avoid the grade. We walk through every GIA fluorescence level, the real price impact by colour band, and how to screen for the 1 to 5 percent of stones with genuine milkiness.

7 min read
Deal Spotlight

Where the market is leaving money on the table right now

Three natural radiant cuts at 2.02ct F colour are sitting 54 to 69 percent below the category median. Natural emerald cuts show a 63 percent average spread across retailers. If you're in the market for a diamond and haven't compared prices across multiple sources, you're almost certainly overpaying.

6 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 DecoderIGI DecoderHRD DecoderAGS DecoderGCAL DecoderAll 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 24 million certified diamonds tracked across 105+ 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.

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Popular searches

Round 1ct NaturalOval 1.5ct Lab GrownEmerald 2ct NaturalCushion 1ct Lab GrownPear 2ct Natural