1.00 - 1.49ct I SI2 Natural Radiant
As of April 2026, there are 1,049 natural radiant diamonds with I color and SI2 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥43,284 JPY to ￥49,807,463 JPY, with an average of ￥1,744,843 JPY.
Last updated: April 2026
Available
1,049
Lowest Price
￥43,284 JPY
Highest Price
￥49,807,463 JPY
Average Price
￥1,744,843 JPY
Market Intelligence
Retailers Selling
43
Cross Retailer %
N/A
Price Spread
46.6%
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
$1,424
Median
$2,140
90th Percentile
$3,473
Score Distribution
1.0K diamonds scored across 4 quality tiers
Excellent
196 (18.7%)
Very Good
400 (38.1%)
Good
304 (29.0%)
Average
149 (14.2%)
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