3.00 - 4.99ct I SI2 Lab Grown Cushion
As of April 2026, there are 129 lab grown cushion diamonds with I color and SI2 clarity in the 3.00 - 4.99ct range available across retailers worldwide. Prices range from ￥27,124 JPY to ￥1,334,030 JPY, with an average of ￥369,412 JPY.
Last updated: April 2026
Available
129
Lowest Price
￥27,124 JPY
Highest Price
￥1,334,030 JPY
Average Price
￥369,412 JPY
Market Intelligence
Retailers Selling
10
Cross Retailer %
N/A
Price Spread
115.4%
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
$359
Median
$623
90th Percentile
$1,374
Score Distribution
129 diamonds scored across 4 quality tiers
Excellent
5 (3.9%)
Very Good
46 (35.7%)
Good
30 (23.3%)
Average
48 (37.2%)
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