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 197.4% 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 |
|---|---|---|---|---|
| 2.52ct G VVS2 Heart (IGI) | $2,267 NZD | $5,667 NZD | $3,400 NZD (150%) | 4 |
| 0.70ct D VS1 Princess (GIA) | $1,707 NZD | $4,267 NZD | $2,560 NZD (150%) | 16 |
| 4.10ct G VVS2 Round (IGI) | $1,677 NZD | $4,192 NZD | $2,515 NZD (150%) | 6 |
| 5.34ct E VVS2 Oval (IGI) | $2,005 NZD | $5,013 NZD | $3,008 NZD (150%) | 3 |
| 3.01ct E VVS1 Emerald (IGI) | $2,430 NZD | $6,075 NZD | $3,645 NZD (150%) | 5 |
| 5.02ct F VVS2 Pear (IGI) | $2,037 NZD | $5,092 NZD | $3,055 NZD (150%) | 5 |
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 | 197.4% | 36.6% | 285 |
| Lab-Grown Emerald | 141.5% | 31.4% | 155 |
| Natural Marquise | 108.3% | 35.7% | 5,083 |
| Natural Pear | 98.4% | 39.1% | 15,438 |
| Natural Radiant | 87.3% | 24.0% | 3,254 |
| Natural Round | 85.4% | 49.7% | 107,406 |
| Natural Oval | 78.9% | 46.8% | 20,408 |
| Lab-Grown Pear | 77.1% | 24.0% | 1,020 |
| Lab-Grown Cushion | 74.2% | 35.4% | 57 |
| Natural Princess | 72.1% | 46.3% | 7,474 |
| Natural Emerald | 71.8% | 59.7% | 4,775 |
| Lab-Grown Heart | 71.0% | 17.1% | 45 |
| Natural Heart | 69.9% | 30.9% | 3,671 |
| Natural Cushion | 66.1% | 27.9% | 7,270 |
| Lab-Grown Oval | 65.1% | 32.0% | 946 |
| Lab-Grown Round | 64.2% | 52.7% | 25,407 |
| Natural Asscher | 55.7% | 59.3% | 506 |
| Lab-Grown Marquise | 51.3% | 20.9% | 125 |
| Lab-Grown Princess | 41.9% | 20.3% | 120 |
Compare prices across 100+ retailers worldwide. Find the best deal on your perfect diamond.