How much does a 0.20 to 0.49ct I VS2 natural marquise diamond cost?

As of October 2026, 0.20 to 0.49ct I VS2 natural marquise diamonds typically cost $280 USD to $627 USD, with a median price of $408 USD. There are currently 255 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS2 marquise diamond?

About 47% of these diamonds are available at multiple retailers, with an average price spread of 61%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct I VS2 Natural Marquise

Quick answer

As of October 2026, there are 255 natural marquise diamonds with I color and VS2 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $280 USD to $627 USD, with a median of $408 USD. At least 16 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 61%. Half of all listings fall between $902 USD and $1,648 USD per carat. The same specification in lab grown form lists at a median of about $674 USD per carat. Over the last 30 days the median price moved -0.1% and the number of listings moved +6.6%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Marquise natural stones in the index: 2,268 USD per carat, +10.8% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

255

Lowest Price

$168 USD

Highest Price

$1,650 USD

Average Price

$436 USD

Market Intelligence

Retailers Selling

Cross Retailer %

46.5%

Price Spread

61.1%

30-Day Price Trend

-0.1%

30-Day Supply Change

+6.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,220/ct

10th Percentile

$840

Median

$1,220

90th Percentile

$1,947

Score Distribution

549 diamonds scored across 4 quality tiers

Excellent

127 (23.1%)

Very Good

158 (28.8%)

Good

109 (19.9%)

Average

155 (28.2%)

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Consider Instead

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

Lab-Grown I VS2Same specifications, lab-grown origin

Save 45%

Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1