0.50 - 0.74ct I SI1 Lab Grown Marquise
As of April 2026, there are 140 lab grown marquise diamonds with I color and SI1 clarity in the 0.50 - 0.74ct range available across retailers worldwide. Prices range from £53 GBP to £42,761 GBP, with an average of £3,076 GBP.
Last updated: April 2026
Available
140
Lowest Price
£53 GBP
Highest Price
£42,761 GBP
Average Price
£3,076 GBP
Market Intelligence
Retailers Selling
18
Cross Retailer %
N/A
Price Spread
65.8%
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
$845
Median
$1,402
90th Percentile
$2,966
Score Distribution
140 diamonds scored across 4 quality tiers
Excellent
8 (5.7%)
Very Good
38 (27.1%)
Good
71 (50.7%)
Average
23 (16.4%)
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