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 Radiant diamonds show the widest price variation, with an average spread of 226.4% across retailers. On average, 36% 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 |
|---|---|---|---|---|
| 3.06ct H VS1 Oval (IGI) | £835 GBP | £2,087 GBP | £1,252 GBP (150%) | 4 |
| 3.60ct I VS1 Princess (GIA) | £3,323 GBP | £8,307 GBP | £4,984 GBP (150%) | 3 |
| 3.30ct D VS2 Radiant (IGI) | £1,307 GBP | £3,268 GBP | £1,961 GBP (150%) | 4 |
| 2.36ct E VS1 Asscher (IGI) | £917 GBP | £2,291 GBP | £1,375 GBP (150%) | 3 |
| 1.56ct D FL Marquise (IGI) | £1,512 GBP | £3,780 GBP | £2,268 GBP (150%) | 3 |
| 6.80ct G VS1 Round (IGI) | £1,817 GBP | £4,541 GBP | £2,725 GBP (150%) | 6 |
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 Radiant | 226.4% | 48.5% | 41 |
| Natural Radiant | 183.7% | 21.2% | 2,088 |
| Lab-Grown Emerald | 120.8% | 36.9% | 192 |
| Natural Marquise | 103.6% | 23.7% | 2,925 |
| Lab-Grown Princess | 90.9% | 26.4% | 319 |
| Natural Pear | 79.7% | 33.5% | 7,884 |
| Natural Oval | 78.6% | 40.1% | 11,769 |
| Lab-Grown Pear | 78.1% | 29.3% | 557 |
| Lab-Grown Cushion | 74.9% | 26.7% | 65 |
| Lab-Grown Round | 74.1% | 54.5% | 28,746 |
| Lab-Grown Marquise | 69.5% | 26.2% | 71 |
| Lab-Grown Oval | 68.5% | 37.5% | 1,069 |
| Natural Round | 64.2% | 47.8% | 77,215 |
| Natural Emerald | 59.0% | 53.6% | 2,947 |
| Natural Cushion | 58.7% | 22.2% | 4,544 |
| Natural Heart | 58.6% | 25.3% | 2,501 |
| Natural Princess | 53.9% | 31.1% | 4,391 |
| Natural Asscher | 38.9% | 62.2% | 285 |
Compare prices across 100+ retailers worldwide. Find the best deal on your perfect diamond.