How much does a 0.20 to 0.49ct H VS1 natural marquise diamond cost?

As of October 2026, 0.20 to 0.49ct H VS1 natural marquise diamonds typically cost £205 GBP to £649 GBP, with a median price of £351 GBP. There are currently 440 diamonds matching this specification available across retailers.

Where can I find the best price on a H VS1 marquise diamond?

About 43% of these diamonds are available at multiple retailers, with an average price spread of 41%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct H VS1 Natural Marquise

Quick answer

As of October 2026, there are 440 natural marquise diamonds with H colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run £205 GBP to £649 GBP, with a median of £351 GBP. At least 16 retailers stock this exact specification, and 43% of the stones appear at more than one of them, with an average price spread of 41%. Half of all listings fall between £789 GBP and £1,232 GBP per carat. The same specification in lab grown form lists at a median of about £532 GBP per carat. Over the last 30 days the median price moved -0.5% and the number of listings moved +6.0%.

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

440

Lowest Price

£116 GBP

Highest Price

£1,270 GBP

Average Price

£392 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

43.1%

Price Spread

40.7%

30-Day Price Trend

-0.5%

30-Day Supply Change

+6.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,457/ct

10th Percentile

$846

Median

$1,457

90th Percentile

$1,785

Score Distribution

929 diamonds scored across 4 quality tiers

Excellent

178 (19.2%)

Very Good

279 (30.0%)

Good

162 (17.4%)

Average

310 (33.4%)

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Consider Instead

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

H VS2VS2 inclusions are not visible without magnification

Save 16%

Lab-Grown H VS1Same specifications, lab-grown origin

Save 51%

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