5.00ct+ I SI1 Natural Round
Last updated: June 2026
Available
24,918
Lowest Price
£51 GBP
Highest Price
£428,355 GBP
Average Price
£4,137 GBP
Market Intelligence
Retailers Selling
16
Cross Retailer %
N/A
Price Spread
45.2%
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
$17,803
Median
$28,360
90th Percentile
$41,282
Score Distribution
24.9K diamonds scored across 4 quality tiers
Excellent
6,714 (26.9%)
Very Good
7,783 (31.2%)
Good
6,265 (25.1%)
Average
4,156 (16.7%)
Find Your Diamond
Search 24,918 I SI1 round diamonds and compare prices.
Search DiamondsConsider Instead
Save money without compromising on what matters. These alternatives are visually similar but cost less.