0.20 - 0.49ct I SI1 Natural Radiant
As of April 2026, there are 1,725 natural radiant diamonds with I color and SI1 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from ￥44,627 JPY to ￥110,637,755 JPY, with an average of ￥1,952,223 JPY.
Last updated: April 2026
Available
1,725
Lowest Price
￥44,627 JPY
Highest Price
￥110,637,755 JPY
Average Price
￥1,952,223 JPY
Market Intelligence
Retailers Selling
26
Cross Retailer %
N/A
Price Spread
49.6%
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
$1,043
Median
$1,490
90th Percentile
$2,264
Score Distribution
1.7K diamonds scored across 4 quality tiers
Excellent
242 (14.0%)
Very Good
588 (34.1%)
Good
611 (35.4%)
Average
284 (16.5%)
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