Cross-Retailer Analysis
How diamond prices vary across retailers for the same shape, carat, colour and clarity. Live spread analysis from 100+ retailers worldwide.
When the same certified diamond is listed at multiple retailers, prices often vary significantly. Lab-Grown Cushion diamonds show the widest price variation, with an average spread of 120.6% across retailers. On average, 33% of diamonds in each category are available from two or more retailers, giving buyers meaningful comparison opportunities.
Real Savings Examples
These are actual certified diamonds currently listed at multiple retailers with different prices.
| Diamond | Lowest Price | Highest Price | You Save | Retailers |
|---|---|---|---|---|
| 2.49ct E VS1 Oval (IGI) | £791 GBP | £1,976 GBP | £1,186 GBP (150%) | 7 |
| 3.10ct D VS2 Marquise (IGI) | £797 GBP | £1,992 GBP | £1,195 GBP (150%) | 3 |
| 0.74ct E VVS2 Cushion (GIA) | £882 GBP | £2,205 GBP | £1,323 GBP (150%) | 5 |
| 3.90ct D VVS2 Radiant (IGI) | £1,852 GBP | £4,630 GBP | £2,778 GBP (150%) | 3 |
| 0.70ct E VVS1 Emerald (GIA) | £935 GBP | £2,339 GBP | £1,403 GBP (150%) | 9 |
| 3.09ct E VVS2 Round (IGI) | £841 GBP | £2,102 GBP | £1,261 GBP (150%) | 4 |
Price Spread by Category
Categories where retailer prices vary most. Cross-retailer % shows what share of stock is listed at multiple retailers.
By Origin and Shape
Click any row to browse those diamonds in the Explorer.
| Category | Avg. Price Spread | Cross-Retailer % | Total Listings |
|---|---|---|---|
| Lab-Grown Cushion | 120.6% | 29.7% | 84 |
| Natural Marquise | 105.1% | 24.2% | 9,579 |
| Natural Pear | 88.3% | 29.1% | 22,821 |
| Lab-Grown Pear | 85.0% | 28.0% | 345 |
| Natural Radiant | 82.7% | 16.9% | 7,559 |
| Natural Oval | 82.4% | 35.1% | 29,135 |
| Natural Round | 81.0% | 42.8% | 135,354 |
| Lab-Grown Round | 80.2% | 38.4% | 14,898 |
| Natural Princess | 75.8% | 26.3% | 10,925 |
| Lab-Grown Emerald | 75.0% | 26.8% | 318 |
| Natural Emerald | 68.1% | 50.3% | 5,678 |
| Lab-Grown Radiant | 63.9% | 47.9% | 269 |
| Natural Heart | 63.6% | 19.6% | 6,705 |
| Lab-Grown Oval | 62.4% | 24.1% | 751 |
| Natural Cushion | 57.9% | 22.5% | 12,050 |
| Natural Asscher | 57.2% | 52.3% | 488 |
| Lab-Grown Princess | 45.8% | 32.6% | 138 |
| Lab-Grown Heart | 42.8% | 58.8% | 24 |
| Lab-Grown Marquise | 40.8% | 25.2% | 48 |
Compare prices across 100+ retailers worldwide. Find the best deal on your perfect diamond.