1.00 to 1.49ct J SI1 Lab Grown Cushion
Last updated: June 2026
Available
646
Lowest Price
$308 AUD
Highest Price
$136,334 AUD
Average Price
$6,485 AUD
Market Intelligence
Retailers Selling
8
Cross Retailer %
N/A
Price Spread
0.8%
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
$1,369
Median
$1,391
90th Percentile
$1,978
Score Distribution
646 diamonds scored across 4 quality tiers
Excellent
7 (1.1%)
Very Good
81 (12.5%)
Good
400 (61.9%)
Average
158 (24.5%)
Find Your Diamond
Search 646 J SI1 cushion diamonds and compare prices.
Search Diamonds