5.00ct+ I SI1 Natural Cushion
As of April 2026, there are 2,676 natural cushion diamonds with I color and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices range from $176 USD to $489,986 USD, with an average of $9,360 USD.
Last updated: April 2026
Available
2,676
Lowest Price
$176 USD
Highest Price
$489,986 USD
Average Price
$9,360 USD
Market Intelligence
Retailers Selling
32
Cross Retailer %
N/A
Price Spread
40.2%
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
$10,328
Median
$18,940
90th Percentile
$25,375
Score Distribution
2.7K diamonds scored across 4 quality tiers
Excellent
495 (18.5%)
Very Good
878 (32.8%)
Good
829 (31.0%)
Average
472 (17.7%)
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