1.50 - 1.99ct I SI1 Natural Round
As of April 2026, there are 22,579 natural round diamonds with I color and SI1 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from $94 USD to $448,392 USD, with an average of $6,188 USD.
Last updated: April 2026
Available
22,579
Lowest Price
$94 USD
Highest Price
$448,392 USD
Average Price
$6,188 USD
Market Intelligence
Retailers Selling
63
Cross Retailer %
N/A
Price Spread
47.2%
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
$3,057
Median
$4,710
90th Percentile
$7,483
Score Distribution
22.6K diamonds scored across 4 quality tiers
Excellent
5,037 (22.3%)
Very Good
7,170 (31.8%)
Good
6,448 (28.6%)
Average
3,909 (17.3%)
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