3.00 - 4.99ct I SI2 Lab Grown Marquise
As of April 2026, there are 70 lab grown marquise diamonds with I color and SI2 clarity in the 3.00 - 4.99ct range available across retailers worldwide. Prices range from £156 GBP to £32,214 GBP, with an average of £3,352 GBP.
Last updated: April 2026
Available
70
Lowest Price
£156 GBP
Highest Price
£32,214 GBP
Average Price
£3,352 GBP
Market Intelligence
Retailers Selling
4
Cross Retailer %
N/A
Price Spread
92.6%
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
$3,848
Median
$6,938
90th Percentile
$13,818
Score Distribution
70 diamonds scored across 4 quality tiers
Excellent
3 (4.3%)
Very Good
30 (42.9%)
Good
21 (30.0%)
Average
16 (22.9%)
Find Your Diamond
Search 70 I SI2 marquise diamonds and compare prices.
Search Diamonds