1.00 - 1.49ct J I1 Lab Grown Round
As of April 2026, there are 1,300 lab grown round diamonds with J color and I1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥11,343 JPY to ￥26,411,642 JPY, with an average of ￥1,101,628 JPY.
Last updated: April 2026
Available
1,300
Lowest Price
￥11,343 JPY
Highest Price
￥26,411,642 JPY
Average Price
￥1,101,628 JPY
Market Intelligence
Retailers Selling
17
Cross Retailer %
69.3%
Price Spread
52.9%
30-Day Price Trend
+42.2%
30-Day Supply Change
+529.1%
Volatility (30d)
0.03
Price Range
Price per carat distribution across retailers
10th Percentile
$878
Median
$1,551
90th Percentile
$2,611
Score Distribution
1.3K diamonds scored across 4 quality tiers
Excellent
13 (1.0%)
Very Good
459 (35.3%)
Good
374 (28.8%)
Average
454 (34.9%)
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