1.00 - 1.49ct I SI1 Lab Grown Marquise
As of April 2026, there are 138 lab grown marquise diamonds with I color and SI1 clarity in the 1.00 - 1.49ct range available across retailers worldwide. Prices range from ￥9,999 JPY to ￥6,784,925 JPY, with an average of ￥478,404 JPY.
Last updated: April 2026
Available
138
Lowest Price
￥9,999 JPY
Highest Price
￥6,784,925 JPY
Average Price
￥478,404 JPY
Market Intelligence
Retailers Selling
13
Cross Retailer %
N/A
Price Spread
60.2%
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
$1,045
Median
$1,722
90th Percentile
$3,106
Score Distribution
137 diamonds scored across 4 quality tiers
Excellent
16 (11.7%)
Very Good
47 (34.3%)
Good
56 (40.9%)
Average
18 (13.1%)
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