0.20 - 0.49ct I SI1 Lab Grown Marquise
As of April 2026, there are 138 lab grown marquise diamonds with I color and SI1 clarity in the 0.20 - 0.49ct 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
49.0%
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
$586
Median
$1,092
90th Percentile
$2,073
Score Distribution
138 diamonds scored across 4 quality tiers
Excellent
16 (11.6%)
Very Good
47 (34.1%)
Good
57 (41.3%)
Average
18 (13.0%)
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