1.50 - 1.99ct I SI1 Lab Grown Round
As of April 2026, there are 7,471 lab grown round diamonds with I color and SI1 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from £51 GBP to £90,386 GBP, with an average of £2,140 GBP.
Last updated: April 2026
Available
7,471
Lowest Price
£51 GBP
Highest Price
£90,386 GBP
Average Price
£2,140 GBP
Market Intelligence
Retailers Selling
42
Cross Retailer %
N/A
Price Spread
123.3%
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
$1,411
Median
$1,955
90th Percentile
$5,966
Score Distribution
7.5K diamonds scored across 4 quality tiers
Excellent
1,230 (16.5%)
Very Good
3,793 (50.8%)
Good
1,515 (20.3%)
Average
933 (12.5%)
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