Lab Grown Heart Diamonds
As of April 2026, there are 378,487 lab grown heart diamonds available. Prices range from ￥24,799 JPY/ct to ￥23,735,495 JPY/ct, with an average of ￥173,195 JPY/ct.
Last updated: April 2026
By Carat Weight
Price Distribution
LowHigh
| Color | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $5,501 | $1,969 | $980 | $660 | $746 | $585 | $579 | $1,128 | - |
| F-G | - | $1,779 | $999 | $642 | $607 | $614 | $762 | $1,293 | $2,644 |
| H-I | - | $2,220 | $1,426 | $866 | $766 | $1,002 | $1,678 | $2,270 | $1,486 |
| J-K | - | $2,090 | $1,555 | $1,690 | $1,284 | $1,301 | $1,471 | $2,196 | $2,788 |
| L-M | - | - | - | $839 | $790 | $1,542 | $1,122 | - | - |
| N+ | - | $1,259 | $855 | $711 | $745 | $834 | $629 | $616 | - |
By Carat Weight
0.20-0.29
346 listings
Avg: ￥157,445 JPY/ct
0.30-0.49
4,337 listings
Avg: ￥190,029 JPY/ct
0.50-0.74
13,278 listings
Avg: ￥164,812 JPY/ct
0.75-0.99
13,054 listings
Avg: ￥163,048 JPY/ct
1.00-1.24
46,400 listings
Avg: ￥165,151 JPY/ct
1.25-1.49
18,861 listings
Avg: ￥132,047 JPY/ct
1.50-1.99
76,727 listings
Avg: ￥183,706 JPY/ct
2.00-2.49
59,981 listings
Avg: ￥210,724 JPY/ct
2.50-2.99
30,676 listings
Avg: ￥150,837 JPY/ct
3.00-3.99
56,447 listings
Avg: ￥186,325 JPY/ct
4.00-4.99
26,909 listings
Avg: ￥154,350 JPY/ct
5.00-9.99
27,274 listings
Avg: ￥228,010 JPY/ct
10.00+
4,038 listings
Avg: ￥124,289 JPY/ct
unknown
159 listings
Avg: ￥207,494 JPY/ct
Price by Color & Clarity
| Color | Clarity | Listings | Avg Price/ct |
|---|---|---|---|
| D-E | FL | 895 | ￥821,049 JPY |
| D-E | IF | 10,534 | ￥293,848 JPY |
| D-E | SI1 | 2,369 | ￥86,451 JPY |
| D-E | SI2 | 338 | ￥168,351 JPY |
| D-E | VS1 | 99,804 | ￥111,321 JPY |
| D-E | VS2 | 22,817 | ￥87,378 JPY |
| D-E | VVS1 | 29,565 | ￥146,231 JPY |
| D-E | VVS2 | 108,340 | ￥98,458 JPY |
| F-G | I | 38 | ￥394,657 JPY |
| F-G | IF | 701 | ￥265,573 JPY |
| F-G | SI1 | 2,287 | ￥113,796 JPY |
| F-G | SI2 | 632 | ￥192,952 JPY |
| F-G | VS1 | 31,501 | ￥90,666 JPY |
| F-G | VS2 | 10,625 | ￥91,699 JPY |
| F-G | VVS1 | 3,934 | ￥149,080 JPY |
| F-G | VVS2 | 24,646 | ￥95,781 JPY |
| H-I | I | 46 | ￥221,824 JPY |
| H-I | IF | 500 | ￥331,343 JPY |
| H-I | SI1 | 997 | ￥250,378 JPY |
| H-I | SI2 | 519 | ￥338,797 JPY |
| H-I | VS1 | 2,978 | ￥114,382 JPY |
| H-I | VS2 | 1,452 | ￥149,556 JPY |
| H-I | VVS1 | 744 | ￥212,886 JPY |
| H-I | VVS2 | 1,712 | ￥129,222 JPY |
| J-K | I | 10 | ￥416,045 JPY |
| J-K | IF | 131 | ￥311,923 JPY |
| J-K | SI1 | 483 | ￥219,592 JPY |
| J-K | SI2 | 206 | ￥327,735 JPY |
| J-K | VS1 | 380 | ￥191,605 JPY |
| J-K | VS2 | 459 | ￥194,237 JPY |
| J-K | VVS1 | 216 | ￥232,060 JPY |
| J-K | VVS2 | 316 | ￥252,249 JPY |
| L-M | SI1 | 26 | ￥167,481 JPY |
| L-M | VS1 | 16 | ￥117,982 JPY |
| L-M | VS2 | 11 | ￥230,181 JPY |
| L-M | VVS2 | 12 | ￥125,161 JPY |
| N+ | IF | 62 | ￥187,906 JPY |
| N+ | SI1 | 661 | ￥93,895 JPY |
| N+ | SI2 | 74 | ￥91,938 JPY |
| N+ | VS1 | 8,821 | ￥111,195 JPY |
| N+ | VS2 | 3,134 | ￥124,507 JPY |
| N+ | VVS1 | 313 | ￥127,668 JPY |
| N+ | VVS2 | 5,182 | ￥106,183 JPY |