5.00ct+ I SI1 Natural Round
As of April 2026, there are 21,088 natural round diamonds with I color and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices range from £74 GBP to £353,065 GBP, with an average of £4,580 GBP.
Last updated: April 2026
Available
21,088
Lowest Price
£74 GBP
Highest Price
£353,065 GBP
Average Price
£4,580 GBP
Market Intelligence
Retailers Selling
15
Cross Retailer %
N/A
Price Spread
39.9%
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
$15,530
Median
$27,295
90th Percentile
$40,961
Score Distribution
21.1K diamonds scored across 4 quality tiers
Excellent
5,104 (24.2%)
Very Good
7,113 (33.7%)
Good
5,791 (27.5%)
Average
3,080 (14.6%)
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