Rapaport MarketIQ shows you what the diamond market is doing right now: where prices are moving, how much stock is out there, and what buyers are searching for. It's built on verified Rapaport Trade listings and filtered to the categories you trade, so you can price, buy and plan inventory on facts rather than gut feel.
What MarketIQ helps you do
Price with greater confidence. Compare average prices by category with the Top 10% most competitive prices, and see how competitively your own inventory is positioned.
Compare diamond categories. Analyze pricing, supply and demand by shape, size, color and clarity to spot the stronger and weaker areas of the market.
See what buyers are searching for. Track search activity by category to catch shifts in buyer interest before they show up in prices, and use it to guide purchasing, production and promotion.
Monitor global market activity. Follow pricing across markets to see where buying and selling opportunities look stronger.
Whether you're a manufacturer, dealer or retailer, it gives you hard numbers to bring to a negotiation and a clearer view of where your margins are.
Five views inside MarketIQ
Price & Trends: Compare average prices with the Top 10% most competitive prices by color and clarity, and track how they change over time.
Supply: See how many diamonds are listed in each category and whether stock is building up or thinning out.
Demand: See each category's share of buyer searches on Rapaport Trade, so you can tell which goods are heating up and which are cooling.
Countries: Compare two markets side by side (for example the US and India) to spot regional price gaps or undersupply.
All Analysis: One dashboard bringing price, inventory, demand and fluorescence together. Click any category and the trend graphs update instantly.
Good to know: The Average 10% price is the average of the cheapest 10% of diamonds in a category. Think of it as the market floor: the most competitive price point for those goods right now.
For a step-by-step walkthrough of each view, see How to Use Rapaport MarketIQ.
Common questions
What shapes and qualities are covered?
What shapes and qualities are covered?
Five shapes: Round (3EX, no fluorescence), plus Pear, Oval, Emerald and Princess (VG+).
Can I see historical data?
Can I see historical data?
Yes. Trend lines go back to January 2025. Change the Comparison Date in the filters to measure movement over a week, a month or a year.
How often is the data updated?
How often is the data updated?
Price and inventory update daily. Search (demand) data updates monthly.
Can I set my own size ranges?
Can I set my own size ranges?
No. MarketIQ uses fixed size categories (for example 1.00–1.49 ct) so the benchmarks stay consistent and comparable.
Does this replace the Rapaport Price List?
Does this replace the Rapaport Price List?
No. The Price List remains the benchmark. MarketIQ shows what's actually happening on Rapaport Trade around it: live prices, discounts, supply and demand.
How does MarketIQ help me negotiate?
How does MarketIQ help me negotiate?
If supply is falling and searches are rising for a category, you have good reason to hold your price. If supply is climbing while demand is flat, it may be time to move stock before prices soften.
Who can use MarketIQ?
Who can use MarketIQ?
Market Intelligence tools are available to eligible Rapaport Trade members. To find out about access, contact us.
Need help?
If something doesn't look right or you'd like a walkthrough, contact us and the team will help.