1.00 - 1.49ct J SI1 Lab Grown Round
As of April 2026, there are 5,427 lab grown round diamonds with J color and SI1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from £84 GBP to £88,851 GBP, with an average of £2,366 GBP.
Last updated: April 2026
Available
5,427
Lowest Price
£84 GBP
Highest Price
£88,851 GBP
Average Price
£2,366 GBP
Market Intelligence
Retailers Selling
42
Cross Retailer %
N/A
Price Spread
41.9%
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
$1,258
Median
$1,764
90th Percentile
$2,605
Score Distribution
5.4K diamonds scored across 4 quality tiers
Excellent
429 (7.9%)
Very Good
2,433 (44.8%)
Good
1,501 (27.7%)
Average
1,064 (19.6%)
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