3.00 - 4.99ct I SI2 Natural Marquise

As of April 2026, there are 1,208 natural marquise diamonds with I color and SI2 clarity in the 3.00 - 4.99ct range available across retailers worldwide. Prices range from $249 CAD to $459,345 CAD, with an average of $9,114 CAD.

Last updated: April 2026

Available
1,208
Lowest Price
$249 CAD
Highest Price
$459,345 CAD
Average Price
$9,114 CAD

Market Intelligence

Retailers Selling
36
Cross Retailer %
N/A
Price Spread
34.5%
30-Day Price Trend
N/A
30-Day Supply Change
N/A
Volatility (30d)
N/A

Price Range

Price per carat distribution across retailers

$11,881/ct
10th Percentile
$6,569
Median
$11,881
90th Percentile
$15,666

Score Distribution

1.2K diamonds scored across 4 quality tiers

Excellent
221 (18.3%)
Very Good
423 (35.0%)
Good
425 (35.2%)
Average
139 (11.5%)

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Search 1,208 I SI2 marquise diamonds and compare prices.

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

J SI2J colour is visually identical to I to the naked eye
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Lab-Grown I SI2Same specifications, lab-grown origin
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Related Specifications

D IFD VVS1D VVS2D VS1D VS2D SI1E IFE VVS1E VVS2E VS1E VS2E SI1F IFF VVS1F VVS2F VS1F VS2F SI1G IFG VVS1G VVS2G VS1G VS2G SI1H IFH VVS1H VVS2H VS1H VS2H SI1I IFI VVS1I VVS2I VS1I VS2I SI1