How much does a 0.50 to 0.74ct I IF natural heart diamond cost?

As of October 2026, 0.50 to 0.74ct I IF natural heart diamonds typically cost £433 GBP to £978 GBP, with a median price of £686 GBP. There are currently 108 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 47%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct I IF Natural Heart

Quick answer

As of October 2026, there are 108 natural heart diamonds with I colour and IF clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run £433 GBP to £978 GBP, with a median of £686 GBP. At least 51 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 47%. Half of all listings fall between £978 GBP and £1,518 GBP per carat. Over the last 30 days the median price moved -4.8% and the number of listings moved +2.6%.

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. Heart natural stones in the index: 2,374 USD per carat, +9.8% 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

108

Lowest Price

£282 GBP

Highest Price

£2,377 GBP

Average Price

£733 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

33.5%

Price Spread

46.9%

30-Day Price Trend

-4.8%

30-Day Supply Change

+2.6%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,528/ct

10th Percentile

$1,144

Median

$1,528

90th Percentile

$3,055

Score Distribution

388 diamonds scored across 5 quality tiers

Exceptional

2 (0.5%)

Excellent

106 (27.3%)

Very Good

76 (19.6%)

Good

101 (26.0%)

Average

103 (26.5%)

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Consider Instead

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

J IFJ colour is visually identical to I to the naked eye

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I VVS1VVS1 inclusions are not visible without magnification

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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