How much does a 3.00 to 4.99ct H IF natural marquise diamond cost?

As of November 2026, 3.00 to 4.99ct H IF natural marquise diamonds typically cost £32,514 GBP to £90,428 GBP, with a median price of £35,947 GBP. There are currently 2 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 33%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct H IF Natural Marquise

Quick answer

As of November 2026, there are 2 natural marquise diamonds with H colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £32,514 GBP to £90,428 GBP, with a median of £35,947 GBP. At least 17 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 33%. Half of all listings fall between £8,652 GBP and £12,077 GBP per carat. The same specification in lab grown form lists at a median of about £1,165 GBP per carat.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise natural stones in the index: 2,177 USD per carat, -4.2% 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: November 2026

Available

Lowest Price

£30,685 GBP

Highest Price

£142,591 GBP

Average Price

£52,963 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

41.7%

Price Spread

33.4%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$13,783/ct

10th Percentile

$10,855

Median

$13,783

90th Percentile

$16,897

Score Distribution

6 diamonds scored across 3 quality tiers

Very Good

2 (33.3%)

Good

1 (16.7%)

Average

3 (50.0%)

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Consider Instead

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Lab-Grown H IFSame specifications, lab-grown origin

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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