0.20 - 0.49ct I SI1 Lab Grown Cushion
As of April 2026, there are 349 lab grown cushion diamonds with I color and SI1 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥29,701 JPY to ￥17,038,030 JPY, with an average of ￥652,872 JPY.
Last updated: April 2026
Available
349
Lowest Price
￥29,701 JPY
Highest Price
￥17,038,030 JPY
Average Price
￥652,872 JPY
Market Intelligence
Retailers Selling
3
Cross Retailer %
N/A
Price Spread
63.0%
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
$857
Median
$2,056
90th Percentile
$2,187
Score Distribution
349 diamonds scored across 4 quality tiers
Excellent
33 (9.5%)
Very Good
63 (18.1%)
Good
88 (25.2%)
Average
165 (47.3%)
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