1.50 - 1.99ct I SI1 Natural Radiant
As of April 2026, there are 1,641 natural radiant diamonds with I color and SI1 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from $299 USD to $741,273 USD, with an average of $11,536 USD.
Last updated: April 2026
Available
1,641
Lowest Price
$299 USD
Highest Price
$741,273 USD
Average Price
$11,536 USD
Market Intelligence
Retailers Selling
50
Cross Retailer %
N/A
Price Spread
44.7%
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
$2,796
Median
$4,167
90th Percentile
$6,408
Score Distribution
1.6K diamonds scored across 4 quality tiers
Excellent
243 (14.8%)
Very Good
580 (35.3%)
Good
576 (35.1%)
Average
242 (14.7%)
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