1.50 - 1.99ct I SI1 Natural Round
As of April 2026, there are 22,306 natural round diamonds with I color and SI1 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from $145 AUD to $689,834 AUD, with an average of $9,476 AUD.
Last updated: April 2026
Available
22,306
Lowest Price
$145 AUD
Highest Price
$689,834 AUD
Average Price
$9,476 AUD
Market Intelligence
Retailers Selling
61
Cross Retailer %
N/A
Price Spread
47.5%
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
$3,052
Median
$4,748
90th Percentile
$7,550
Score Distribution
22.3K diamonds scored across 4 quality tiers
Excellent
5,017 (22.5%)
Very Good
7,012 (31.4%)
Good
6,378 (28.6%)
Average
3,899 (17.5%)
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