3.00 - 4.99ct E SI1 Lab Grown Cushion
As of April 2026, there are 1,485 lab grown cushion diamonds with E color and SI1 clarity in the 3.00 - 4.99ct range available across retailers worldwide. Prices range from £62 GBP to £14,528 GBP, with an average of £810 GBP.
Last updated: April 2026
Available
1,485
Lowest Price
£62 GBP
Highest Price
£14,528 GBP
Average Price
£810 GBP
Market Intelligence
Retailers Selling
30
Cross Retailer %
N/A
Price Spread
68.0%
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
$198
Median
$329
90th Percentile
$1,157
Score Distribution
1.5K diamonds scored across 4 quality tiers
Excellent
543 (36.6%)
Very Good
406 (27.3%)
Good
314 (21.1%)
Average
222 (14.9%)
Find Your Diamond
Search 1,485 E SI1 cushion diamonds and compare prices.
Search Diamonds