1.00 - 1.49ct J SI1 Lab Grown Round
As of April 2026, there are 4,848 lab grown round diamonds with J color and SI1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥15,970 JPY to ￥11,295,373 JPY, with an average of ￥366,988 JPY.
Last updated: April 2026
Available
4,848
Lowest Price
￥15,970 JPY
Highest Price
￥11,295,373 JPY
Average Price
￥366,988 JPY
Market Intelligence
Retailers Selling
41
Cross Retailer %
N/A
Price Spread
42.9%
30-Day Price Trend
N/A
30-Day Supply Change
N/A
Volatility (30d)
N/A
Price Range
Price per carat distribution across retailers
10th Percentile
$1,258
Median
$1,766
90th Percentile
$2,630
Score Distribution
4.8K diamonds scored across 4 quality tiers
Excellent
422 (8.7%)
Very Good
2,353 (48.5%)
Good
1,463 (30.2%)
Average
610 (12.6%)
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