1.00 - 1.49ct I I1 Lab Grown Round
As of April 2026, there are 1,168 lab grown round diamonds with I color and I1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥11,642 JPY to ￥8,057,910 JPY, with an average of ￥295,416 JPY.
Last updated: April 2026
Available
1,168
Lowest Price
￥11,642 JPY
Highest Price
￥8,057,910 JPY
Average Price
￥295,416 JPY
Market Intelligence
Retailers Selling
19
Cross Retailer %
78.8%
Price Spread
60.7%
30-Day Price Trend
+50.9%
30-Day Supply Change
+740.5%
Volatility (30d)
0.02
Price Range
Price per carat distribution across retailers
10th Percentile
$972
Median
$1,825
90th Percentile
$2,954
Score Distribution
1.2K diamonds scored across 4 quality tiers
Excellent
29 (2.5%)
Very Good
546 (46.7%)
Good
352 (30.1%)
Average
241 (20.6%)
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