Lab Grown Heart Diamonds, 1.00 - 1.49ct
As of April 2026, there are 68,373 lab grown heart diamonds between 1.00 - 1.49ct available across retailers. Prices range from ￥42,564 JPY/ct to ￥872,418 JPY/ct, with an average of ￥152,810 JPY/ct. Approximately 22% of these diamonds are available at multiple retailers, with an average price spread of 69%.
Last updated: April 2026
Browse 68,373 diamonds in ExplorerPrice Distribution
LowHigh
| Color | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $1,242 | $1,019 | $662 | $584 | $537 | $520 | $516 | $1,358 | - |
| F-G | - | $1,392 | $578 | $523 | $494 | $523 | $914 | $1,345 | $1,346 |
| H-I | - | $2,859 | $1,880 | $1,041 | $926 | $1,585 | $1,570 | $1,671 | $1,584 |
| J-K | - | $1,619 | $1,504 | $1,419 | $1,388 | $1,392 | $1,388 | $1,121 | - |
| N+ | - | $1,267 | $680 | $671 | $637 | $740 | $600 | $682 | - |
Price by Color & Clarity
Average price per carat for 1.00 - 1.49ct lab grown heart diamonds by color and clarity grade.
| Color | Clarity | Listings | Avg Price/ct | Spread |
|---|---|---|---|---|
| D-E | FL | 11 | ￥185,424 JPY | 120% |
| D-E | IF | 2,906 | ￥152,099 JPY | 79% |
| D-E | SI1 | 434 | ￥76,962 JPY | 65% |
| D-E | SI2 | 139 | ￥202,690 JPY | 33% |
| D-E | VS1 | 16,014 | ￥80,113 JPY | 59% |
| D-E | VS2 | 4,254 | ￥77,566 JPY | 59% |
| D-E | VVS1 | 7,134 | ￥98,762 JPY | 64% |
| D-E | VVS2 | 18,793 | ￥87,219 JPY | 60% |
| F-G | I | 26 | ￥200,936 JPY | 60% |
| F-G | IF | 123 | ￥207,690 JPY | 111% |
| F-G | SI1 | 529 | ￥136,411 JPY | 63% |
| F-G | SI2 | 314 | ￥200,740 JPY | 44% |
| F-G | VS1 | 5,273 | ￥73,760 JPY | 59% |
| F-G | VS2 | 2,184 | ￥78,099 JPY | 73% |
| F-G | VVS1 | 512 | ￥86,281 JPY | 66% |
| F-G | VVS2 | 2,938 | ￥78,105 JPY | 61% |
| H-I | I | 25 | ￥236,416 JPY | 88% |
| H-I | IF | 17 | ￥426,716 JPY | 105% |
| H-I | SI1 | 406 | ￥234,278 JPY | 51% |
| H-I | SI2 | 248 | ￥249,460 JPY | 53% |
| H-I | VS1 | 324 | ￥138,165 JPY | 87% |
| H-I | VS2 | 271 | ￥236,567 JPY | 43% |
| H-I | VVS1 | 66 | ￥280,543 JPY | 35% |
| H-I | VVS2 | 232 | ￥155,418 JPY | 100% |
| J-K | IF | 10 | ￥241,687 JPY | 79% |
| J-K | SI1 | 190 | ￥207,131 JPY | 20% |
| J-K | SI2 | 76 | ￥167,364 JPY | 56% |
| J-K | VS1 | 190 | ￥207,164 JPY | 21% |
| J-K | VS2 | 130 | ￥207,830 JPY | 22% |
| J-K | VVS1 | 94 | ￥224,446 JPY | 31% |
| J-K | VVS2 | 110 | ￥211,845 JPY | 31% |
| N+ | IF | 54 | ￥189,159 JPY | 85% |
| N+ | SI1 | 164 | ￥89,617 JPY | 113% |
| N+ | SI2 | 24 | ￥101,772 JPY | 134% |
| N+ | VS1 | 1,857 | ￥95,146 JPY | 92% |
| N+ | VS2 | 684 | ￥110,498 JPY | 93% |
| N+ | VVS1 | 171 | ￥101,474 JPY | 89% |
| N+ | VVS2 | 1,446 | ￥100,193 JPY | 83% |