1.50 - 1.99ct I SI1 Lab Grown Radiant
As of April 2026, there are 416 lab grown radiant diamonds with I color and SI1 clarity in the 1.50 - 1.99ct range available across retailers worldwide. Prices range from $193 USD to $542,093 USD, with an average of $5,522 USD.
Last updated: April 2026
Available
416
Lowest Price
$193 USD
Highest Price
$542,093 USD
Average Price
$5,522 USD
Market Intelligence
Retailers Selling
20
Cross Retailer %
N/A
Price Spread
18.6%
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
$521
Median
$1,505
90th Percentile
$2,298
Score Distribution
416 diamonds scored across 4 quality tiers
Excellent
14 (3.4%)
Very Good
29 (7.0%)
Good
263 (63.2%)
Average
110 (26.4%)
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