How much does a 0.50 to 0.74ct G SI1 natural heart diamond cost?

As of October 2026, 0.50 to 0.74ct G SI1 natural heart diamonds typically cost $436 USD to $970 USD, with a median price of $638 USD. There are currently 676 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI1 heart diamond?

About 34% of these diamonds are available at multiple retailers, with an average price spread of 35%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct G SI1 Natural Heart

Quick answer

As of October 2026, there are 676 natural heart diamonds with G color and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $436 USD to $970 USD, with a median of $638 USD. At least 59 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 35%. Half of all listings fall between $943 USD and $1,338 USD per carat. The same specification in lab grown form lists at a median of about $530 USD per carat. Over the last 30 days the median price moved -2.0% and the number of listings moved +3.4%.

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

676

Lowest Price

$376 USD

Highest Price

$2,079 USD

Average Price

$688 USD

Market Intelligence

Retailers Selling

Cross Retailer %

34.4%

Price Spread

34.9%

30-Day Price Trend

-2.0%

30-Day Supply Change

+3.4%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,130/ct

10th Percentile

$850

Median

$1,130

90th Percentile

$1,855

Score Distribution

1.7K diamonds scored across 4 quality tiers

Excellent

415 (24.7%)

Very Good

147 (8.8%)

Good

448 (26.7%)

Average

670 (39.9%)

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Consider Instead

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

H SI1H colour is visually identical to G to the naked eye

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Lab-Grown G SI1Same specifications, lab-grown origin

Save 53%

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