Our Diamond Price Reports and Diamond Price Calculator give you real market insight based on live marketplace data, so you can buy, sell and quote with confidence.
See why Polygon gives you a more transparent and accurate view of the diamond market.
Polygon Diamond Price Report
Real market insight based on live data.
Based on actual listings from verified trade members
Shows real-time market pricing and trends
Includes comparable stones with full details
Transparent for both retailers and suppliers
Powered by live supply and demand from the marketplace
Helps you quote, buy and sell with confidence
Other Reports on the Market
An inflated price list, not real market data.
Published list prices (not actual transaction prices)
Typically higher than real wholesale levels
You need to calculate a % back to find fair value
Not transparent for retailers
Doesn't show live comparable stones
Lacks key market context
Real data behind every decision.
Our Business Intelligence tools give you the market insight you need — whether you're buying, selling or quoting a client.
Live Market Data
Based on actual listings from verified members.
Comparable Stones
See real examples with full specifications.
Up-to-Date Trends
Track pricing movements across shapes, sizes and qualities.
Diamond Reports
Natural and lab-grown diamond reports with detailed market insights.
Diamond Price Calculator
Get a realistic price range based on live market data.
Accessible Anywhere
Available on desktop and mobile, anytime you need it.
Why do jewelers prefer Polygon over Rapaport?
Rapaport gives you a price list. Polygon gives you the full picture: pricing data for both natural and lab-grown diamonds, backed by a marketplace where you can act on it.
Real-time market prices
Prices come from verified sellers and are updated at least every 8 days, with easy item comparison
Built-in marketplace
Go from research to buying and selling without leaving the platform.
A real community
Connect, discuss and do business with peers who share your industry.
Meet the Popular Diamond Report.
A member-favorite, data-driven snapshot of the most-researched natural diamonds on Polygon. It analyzes real search behavior across the 4Cs — cut, carat, color and clarity — and weighs demand against live supply, so you can see what the trade is hunting for and where the gaps are.
Most-searched goods
See the top shapes and 4C combinations the trade is searching for right now.
Demand vs. supply
Compare share of searches against share of listings to spot fast-movers and undersupplied goods.
Buy & stock smarter
Stock what sells and source to the gaps — backed by $3B+ of loose diamond inventory in the database.
Make better decisions with real market insight.
Get access to our Diamond Price Reports and Diamond Price Calculator and see the difference for yourself.
