1.50 - 1.99ct I SI2 Natural Round
As of April 2026, there are 17,064 natural round diamonds with I color and SI2 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from $92 AUD to $1,274,028 AUD, with an average of $10,207 AUD.
Last updated: April 2026
Available
17,064
Lowest Price
$92 AUD
Highest Price
$1,274,028 AUD
Average Price
$10,207 AUD
Market Intelligence
Retailers Selling
56
Cross Retailer %
N/A
Price Spread
49.5%
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
$2,394
Median
$3,867
90th Percentile
$6,158
Score Distribution
17.1K diamonds scored across 4 quality tiers
Excellent
3,581 (21.0%)
Very Good
6,797 (39.8%)
Good
4,036 (23.7%)
Average
2,650 (15.5%)
Find Your Diamond
Search 17,064 I SI2 round diamonds and compare prices.
Search DiamondsConsider Instead
Save money without compromising on what matters. These alternatives are visually similar but cost less.