0.20 - 0.49ct I SI2 Lab Grown Marquise
As of April 2026, there are 71 lab grown marquise diamonds with I color and SI2 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from £156 GBP to £32,259 GBP, with an average of £3,389 GBP.
Last updated: April 2026
Available
71
Lowest Price
£156 GBP
Highest Price
£32,259 GBP
Average Price
£3,389 GBP
Score Distribution
71 diamonds scored across 4 quality tiers
Excellent
4 (5.6%)
Very Good
26 (36.6%)
Good
24 (33.8%)
Average
17 (23.9%)
Find Your Diamond
Search 71 I SI2 marquise diamonds and compare prices.
Search Diamonds