1.50 - 1.99ct J I1 Lab Grown Round
As of April 2026, there are 1,195 lab grown round diamonds with J color and I1 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from ￥11,343 JPY to ￥23,028,209 JPY, with an average of ￥777,556 JPY.
Last updated: April 2026
Available
1,195
Lowest Price
￥11,343 JPY
Highest Price
￥23,028,209 JPY
Average Price
￥777,556 JPY
Market Intelligence
Retailers Selling
16
Cross Retailer %
55.3%
Price Spread
70.4%
30-Day Price Trend
+28.8%
30-Day Supply Change
+273.3%
Volatility (30d)
0.02
Price Range
Price per carat distribution across retailers
10th Percentile
$1,119
Median
$1,965
90th Percentile
$4,236
Score Distribution
1.2K diamonds scored across 4 quality tiers
Excellent
13 (1.1%)
Very Good
465 (38.9%)
Good
371 (31.0%)
Average
346 (29.0%)
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