天然 Radiant Diamond Prices in Japan
最終更新：September 2026
カラット重量別
価格分布
LowHigh
| カラー | FL | IF | VVS1 | VVS2 | VS1 | VS2 | SI1 | SI2 | I |
|---|---|---|---|---|---|---|---|---|---|
| D-E | $13K | $10K | $6,829 | $8,137 | $10K | $10K | $8,693 | $6,394 | $5,542 |
| F-G | $4,163 | $8,455 | $9,238 | $9,668 | $12K | $8,585 | $7,705 | $6,717 | $7,807 |
| H-I | $4,323 | $7,536 | $7,558 | $7,632 | $7,090 | $5,660 | $7,343 | $6,431 | $6,111 |
| J-K | $1,872 | $3,647 | $5,633 | $4,961 | $6,735 | $6,686 | $5,963 | $4,233 | $5,192 |
| L-M | - | $2,176 | $2,116 | $2,583 | $3,119 | $2,987 | $2,746 | $3,529 | $1,885 |
| N+ | $4,578 | $7,994 | $7,424 | $6,893 | $8,199 | $12K | $8,414 | $8,161 | $7,420 |
カラット重量別
0.20-0.29
1,032件の掲載
平均：￥721,418 JPY/ct
0.30-0.49
26,032件の掲載
平均：￥347,314 JPY/ct
0.50-0.74
84,823件の掲載
平均：￥310,384 JPY/ct
0.75-0.99
30,059件の掲載
平均：￥374,931 JPY/ct
1.00-1.24
82,159件の掲載
平均：￥450,450 JPY/ct
1.25-1.49
9,082件の掲載
平均：￥657,837 JPY/ct
1.50-1.99
42,523件の掲載
平均：￥762,715 JPY/ct
2.00-2.49
24,705件の掲載
平均：￥1,056,443 JPY/ct
2.50-2.99
5,121件の掲載
平均：￥1,343,223 JPY/ct
3.00-3.99
9,521件の掲載
平均：￥1,720,666 JPY/ct
4.00-4.99
1,706件の掲載
平均：￥1,971,358 JPY/ct
5.00-9.99
2,314件の掲載
平均：￥2,681,160 JPY/ct
10.00+
384件の掲載
平均：￥3,368,554 JPY/ct
unknown
104件の掲載
平均：￥5,194,276 JPY/ct
カラー・クラリティ別の価格
| カラー | クラリティ | 掲載数 | 平均価格/ct |
|---|---|---|---|
| D-E | FL | 319 | ￥2,067,128 JPY |
| D-E | I | 1,475 | ￥853,748 JPY |
| D-E | IF | 3,589 | ￥1,545,644 JPY |
| D-E | SI1 | 11,539 | ￥1,339,124 JPY |
| D-E | SI2 | 6,396 | ￥984,870 JPY |
| D-E | VS1 | 13,978 | ￥1,614,735 JPY |
| D-E | VS2 | 13,823 | ￥1,605,691 JPY |
| D-E | VVS1 | 11,049 | ￥1,051,875 JPY |
| D-E | VVS2 | 10,270 | ￥1,253,450 JPY |
| F-G | FL | 237 | ￥641,255 JPY |
| F-G | I | 1,962 | ￥1,202,579 JPY |
| F-G | IF | 3,933 | ￥1,302,382 JPY |
| F-G | SI1 | 13,295 | ￥1,186,892 JPY |
| F-G | SI2 | 8,263 | ￥1,034,701 JPY |
| F-G | VS1 | 16,501 | ￥1,834,229 JPY |
| F-G | VS2 | 17,214 | ￥1,322,366 JPY |
| F-G | VVS1 | 12,138 | ￥1,423,042 JPY |
| F-G | VVS2 | 11,523 | ￥1,489,263 JPY |
| H-I | FL | 179 | ￥665,944 JPY |
| H-I | I | 2,161 | ￥941,314 JPY |
| H-I | IF | 2,634 | ￥1,160,832 JPY |
| H-I | SI1 | 13,190 | ￥1,131,175 JPY |
| H-I | SI2 | 8,817 | ￥990,668 JPY |
| H-I | VS1 | 14,546 | ￥1,092,103 JPY |
| H-I | VS2 | 15,285 | ￥871,924 JPY |
| H-I | VVS1 | 11,882 | ￥1,164,224 JPY |
| H-I | VVS2 | 11,495 | ￥1,175,670 JPY |
| J-K | FL | 46 | ￥288,340 JPY |
| J-K | I | 858 | ￥799,708 JPY |
| J-K | IF | 940 | ￥561,745 JPY |
| J-K | SI1 | 6,924 | ￥918,560 JPY |
| J-K | SI2 | 4,369 | ￥651,974 JPY |
| J-K | VS1 | 6,004 | ￥1,037,523 JPY |
| J-K | VS2 | 6,901 | ￥1,029,838 JPY |
| J-K | VVS1 | 3,837 | ￥867,667 JPY |
| J-K | VVS2 | 4,158 | ￥764,169 JPY |
| L-M | I | 23 | ￥290,423 JPY |
| L-M | IF | 75 | ￥335,169 JPY |
| L-M | SI1 | 831 | ￥422,993 JPY |
| L-M | SI2 | 450 | ￥543,608 JPY |
| L-M | VS1 | 769 | ￥480,484 JPY |
| L-M | VS2 | 810 | ￥460,057 JPY |
| L-M | VVS1 | 329 | ￥325,936 JPY |
| L-M | VVS2 | 400 | ￥397,939 JPY |
| N+ | FL | 97 | ￥705,144 JPY |
| N+ | I | 1,310 | ￥1,143,017 JPY |
| N+ | IF | 2,219 | ￥1,231,321 JPY |
| N+ | SI1 | 4,675 | ￥1,296,042 JPY |
| N+ | SI2 | 2,835 | ￥1,257,073 JPY |
| N+ | VS1 | 11,192 | ￥1,262,944 JPY |
| N+ | VS2 | 9,938 | ￥1,802,538 JPY |
| N+ | VVS1 | 4,813 | ￥1,143,595 JPY |
| N+ | VVS2 | 6,805 | ￥1,061,867 JPY |
| N+ | other | 264 | ￥1,766,476 JPY |