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 |
|---|---|---|---|---|
| 2.00ct E VVS2 Heart (GIA) | $1,667 NZD | $4,167 NZD | $2,500 NZD (150%) | 3 |
| 0.70ct D VS1 Princess (GIA) | $1,707 NZD | $4,267 NZD | $2,560 NZD (150%) | 16 |
| 0.70ct D VVS1 Asscher (GIA) | $2,000 NZD | $5,000 NZD | $3,000 NZD (150%) | 6 |
| 1.73ct I VS1 Round (IGI) | $2,407 NZD | $6,017 NZD | $3,610 NZD (150%) | 3 |
| 2.06ct F VS1 Oval (IGI) | $1,700 NZD | $4,250 NZD | $2,550 NZD (150%) | 3 |
| 5.57ct G VS1 Emerald (IGI) | $2,020 NZD | $5,050 NZD | $3,030 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 | 137.4% | 30.5% | 153 |
| Natural Marquise | 102.2% | 35.6% | 5,862 |
| Natural Pear | 98.3% | 38.8% | 16,390 |
| Natural Radiant | 84.7% | 24.0% | 4,107 |
| Natural Round | 84.6% | 50.0% | 107,712 |
| Lab-Grown Pear | 77.9% | 24.0% | 1,016 |
| Natural Oval | 77.7% | 46.9% | 21,460 |
| Lab-Grown Cushion | 74.2% | 35.4% | 57 |
| Natural Emerald | 71.8% | 59.8% | 4,773 |
| Lab-Grown Heart | 71.0% | 17.1% | 45 |
| Natural Princess | 70.5% | 46.2% | 8,137 |
| Natural Heart | 67.9% | 31.1% | 4,606 |
| Natural Cushion | 64.6% | 28.1% | 8,025 |
| Lab-Grown Round | 64.2% | 52.6% | 25,373 |
| Lab-Grown Oval | 64.0% | 32.4% | 954 |
| Natural Asscher | 55.7% | 59.3% | 506 |
| Lab-Grown Marquise | 51.3% | 20.9% | 125 |
| Lab-Grown Princess | 44.8% | 21.6% | 110 |
Compare prices across 100+ retailers worldwide. Find the best deal on your perfect diamond.