0.20 - 0.49ct J SI1 Natural Marquise
As of April 2026, there are 929 natural marquise diamonds with J color and SI1 clarity in the 0.20 - 0.49ct range available across retailers worldwide. Prices range from £28 GBP to £173,086 GBP, with an average of £4,410 GBP.
Last updated: April 2026
Available
929
Lowest Price
£28 GBP
Highest Price
£173,086 GBP
Average Price
£4,410 GBP
Market Intelligence
Retailers Selling
39
Cross Retailer %
N/A
Price Spread
40.5%
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
$737
Median
$1,169
90th Percentile
$1,730
Score Distribution
929 diamonds scored across 4 quality tiers
Excellent
108 (11.6%)
Very Good
184 (19.8%)
Good
365 (39.3%)
Average
272 (29.3%)
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