天然 Round 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 | $26K | $20K | $24K | $19K | $13K | $15K | $11K | $6,672 | $4,880 |
| F-G | $15K | $16K | $15K | $15K | $15K | $12K | $9,870 | $6,845 | $3,920 |
| H-I | $6,978 | $10K | $11K | $9,954 | $9,504 | $8,409 | $6,949 | $5,808 | $3,575 |
| J-K | $5,076 | $7,181 | $6,554 | $6,474 | $6,340 | $5,995 | $5,876 | $4,413 | $2,979 |
| L-M | $3,032 | $4,370 | $3,899 | $5,026 | $4,597 | $4,172 | $3,692 | $3,172 | $2,260 |
| N+ | - | $4,145 | $3,126 | $1,288 | $3,557 | $3,520 | $4,570 | $5,547 | $4,274 |
カラット重量別
0.20-0.29
252,557件の掲載
平均：￥308,071 JPY/ct
0.30-0.49
2,019,287件の掲載
平均：￥227,099 JPY/ct
0.50-0.74
1,761,256件の掲載
平均：￥245,318 JPY/ct
0.75-0.99
467,387件の掲載
平均：￥353,235 JPY/ct
1.00-1.24
777,176件の掲載
平均：￥497,814 JPY/ct
1.25-1.49
111,590件の掲載
平均：￥640,456 JPY/ct
1.50-1.99
411,977件の掲載
平均：￥763,888 JPY/ct
2.00-2.49
198,964件の掲載
平均：￥1,163,988 JPY/ct
2.50-2.99
63,253件の掲載
平均：￥1,448,328 JPY/ct
3.00-3.99
76,597件の掲載
平均：￥1,879,669 JPY/ct
4.00-4.99
22,462件の掲載
平均：￥2,381,437 JPY/ct
5.00-9.99
19,798件の掲載
平均：￥3,023,392 JPY/ct
10.00+
1,029件の掲載
平均：￥4,382,865 JPY/ct
unknown
87,501件の掲載
平均：￥912,526 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 | 22,699 | ￥3,860,280 JPY |
| D-E | I | 27,219 | ￥728,409 JPY |
| D-E | IF | 150,345 | ￥2,949,420 JPY |
| D-E | SI1 | 242,421 | ￥1,688,034 JPY |
| D-E | SI2 | 162,597 | ￥995,756 JPY |
| D-E | VS1 | 282,970 | ￥1,893,861 JPY |
| D-E | VS2 | 260,975 | ￥2,201,526 JPY |
| D-E | VVS1 | 364,058 | ￥3,564,832 JPY |
| D-E | VVS2 | 272,458 | ￥2,854,304 JPY |
| D-E | other | 26 | ￥326,978 JPY |
| F-G | FL | 3,246 | ￥2,263,924 JPY |
| F-G | I | 41,568 | ￥585,059 JPY |
| F-G | IF | 129,780 | ￥2,432,779 JPY |
| F-G | SI1 | 277,091 | ￥1,473,104 JPY |
| F-G | SI2 | 212,446 | ￥1,021,568 JPY |
| F-G | VS1 | 317,789 | ￥2,188,548 JPY |
| F-G | VS2 | 318,244 | ￥1,828,460 JPY |
| F-G | VVS1 | 306,998 | ￥2,209,229 JPY |
| F-G | VVS2 | 271,540 | ￥2,194,758 JPY |
| F-G | other | 44 | ￥589,751 JPY |
| H-I | FL | 1,233 | ￥1,041,562 JPY |
| H-I | I | 34,043 | ￥533,609 JPY |
| H-I | IF | 88,473 | ￥1,534,125 JPY |
| H-I | SI1 | 236,842 | ￥1,037,090 JPY |
| H-I | SI2 | 177,279 | ￥866,835 JPY |
| H-I | VS1 | 285,721 | ￥1,418,461 JPY |
| H-I | VS2 | 288,345 | ￥1,255,115 JPY |
| H-I | VVS1 | 243,421 | ￥1,571,547 JPY |
| H-I | VVS2 | 241,968 | ￥1,485,653 JPY |
| H-I | other | 22 | ￥447,239 JPY |
| J-K | FL | 612 | ￥757,656 JPY |
| J-K | I | 20,220 | ￥444,623 JPY |
| J-K | IF | 44,145 | ￥1,071,755 JPY |
| J-K | SI1 | 118,976 | ￥877,049 JPY |
| J-K | SI2 | 92,920 | ￥658,639 JPY |
| J-K | VS1 | 135,315 | ￥946,311 JPY |
| J-K | VS2 | 115,231 | ￥894,709 JPY |
| J-K | VVS1 | 131,297 | ￥978,253 JPY |
| J-K | VVS2 | 122,219 | ￥966,194 JPY |
| L-M | FL | 54 | ￥452,594 JPY |
| L-M | I | 5,364 | ￥337,362 JPY |
| L-M | IF | 8,465 | ￥652,187 JPY |
| L-M | SI1 | 30,648 | ￥550,985 JPY |
| L-M | SI2 | 23,186 | ￥473,495 JPY |
| L-M | VS1 | 27,481 | ￥686,183 JPY |
| L-M | VS2 | 26,532 | ￥622,696 JPY |
| L-M | VVS1 | 27,049 | ￥581,960 JPY |
| L-M | VVS2 | 25,935 | ￥750,166 JPY |
| N+ | I | 6,003 | ￥637,873 JPY |
| N+ | IF | 633 | ￥618,608 JPY |
| N+ | SI1 | 6,316 | ￥682,110 JPY |
| N+ | SI2 | 5,866 | ￥827,979 JPY |
| N+ | VS1 | 9,122 | ￥530,948 JPY |
| N+ | VS2 | 6,128 | ￥525,310 JPY |
| N+ | VVS1 | 3,118 | ￥466,585 JPY |
| N+ | VVS2 | 15,201 | ￥192,223 JPY |
| N+ | other | 937 | ￥1,051,350 JPY |