1.00 - 1.49ct I I1 Natural Radiant
As of April 2026, there are 129 natural radiant diamonds with I color and I1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥53,134 JPY to ￥13,375,373 JPY, with an average of ￥1,010,474 JPY.
Last updated: April 2026
Available
129
Lowest Price
￥53,134 JPY
Highest Price
￥13,375,373 JPY
Average Price
￥1,010,474 JPY
Market Intelligence
Retailers Selling
18
Cross Retailer %
32.0%
Price Spread
42.8%
30-Day Price Trend
-5.9%
30-Day Supply Change
-6.8%
Volatility (30d)
0.02
Price Range
Price per carat distribution across retailers
10th Percentile
$1,259
Median
$1,890
90th Percentile
$3,206
Score Distribution
129 diamonds scored across 4 quality tiers
Excellent
7 (5.4%)
Very Good
39 (30.2%)
Good
31 (24.0%)
Average
52 (40.3%)
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