5.00ct+ I SI1 Natural Cushion
As of April 2026, there are 2,693 natural cushion diamonds with I color and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices range from €161 EUR to €449,528 EUR, with an average of €8,627 EUR.
Last updated: April 2026
Available
2,693
Lowest Price
€161 EUR
Highest Price
€449,528 EUR
Average Price
€8,627 EUR
Market Intelligence
Retailers Selling
35
Cross Retailer %
N/A
Price Spread
41.9%
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
$10,067
Median
$18,849
90th Percentile
$25,581
Score Distribution
2.7K diamonds scored across 4 quality tiers
Excellent
488 (18.1%)
Very Good
887 (33.0%)
Good
843 (31.3%)
Average
473 (17.6%)
Find Your Diamond
Search 2,693 I SI1 cushion diamonds and compare prices.
Search DiamondsConsider Instead
Save money without compromising on what matters. These alternatives are visually similar but cost less.