0.20 - 0.49ct E SI1 Lab Grown Marquise
As of April 2026, there are 1,161 lab grown marquise diamonds with E color and SI1 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from £38 GBP to £17,786 GBP, with an average of £609 GBP.
Last updated: April 2026
Available
1,161
Lowest Price
£38 GBP
Highest Price
£17,786 GBP
Average Price
£609 GBP
Market Intelligence
Retailers Selling
8
Cross Retailer %
N/A
Price Spread
159.8%
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
$375
Median
$931
90th Percentile
$2,645
Score Distribution
1.2K diamonds scored across 4 quality tiers
Excellent
451 (38.8%)
Very Good
330 (28.4%)
Good
250 (21.5%)
Average
130 (11.2%)
Find Your Diamond
Search 1,161 E SI1 marquise diamonds and compare prices.
Search Diamonds