1.00 to 1.49ct H SI1 Natural Radiant
Last updated: June 2026
Available
1,564
Lowest Price
£214 GBP
Highest Price
£308,107 GBP
Average Price
£9,879 GBP
Market Intelligence
Retailers Selling
53
Cross Retailer %
N/A
Price Spread
41.7%
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
$1,590
Median
$2,336
90th Percentile
$3,677
Score Distribution
1.6K diamonds scored across 4 quality tiers
Excellent
203 (13.0%)
Very Good
463 (29.6%)
Good
570 (36.4%)
Average
328 (21.0%)
Find Your Diamond
Search 1,564 H SI1 radiant diamonds and compare prices.
Search DiamondsConsider Instead
Save money without compromising on what matters. These alternatives are visually similar but cost less.