0.20 - 0.49ct J SI2 Lab Grown Round
As of April 2026, there are 3,580 lab grown round diamonds with J color and SI2 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥12,537 JPY to ￥88,244,030 JPY, with an average of ￥368,753 JPY.
Last updated: April 2026
Available
3,580
Lowest Price
￥12,537 JPY
Highest Price
￥88,244,030 JPY
Average Price
￥368,753 JPY
Market Intelligence
Retailers Selling
11
Cross Retailer %
N/A
Price Spread
72.8%
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
$456
Median
$796
90th Percentile
$1,858
Score Distribution
3.6K diamonds scored across 4 quality tiers
Excellent
312 (8.7%)
Very Good
1,771 (49.5%)
Good
935 (26.1%)
Average
562 (15.7%)
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