1.00 to 1.49ct J SI1 Natural Round
Last updated: July 2026
Available
2,916
Lowest Price
$832 NZD
Highest Price
$38,318 NZD
Average Price
$4,384 NZD
Market Intelligence
Retailers Selling
57
Cross Retailer %
N/A
Price Spread
41.0%
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
$1,481
Median
$2,154
90th Percentile
$3,255
Score Distribution
2.9K diamonds scored across 4 quality tiers
Excellent
629 (21.6%)
Very Good
965 (33.1%)
Good
735 (25.2%)
Average
587 (20.1%)
Find Your Diamond
Search 2,916 J SI1 round diamonds and compare prices.
Search DiamondsConsider Instead
Save money without compromising on what matters. These alternatives are visually similar but cost less.