How much does a 0.20 to 0.49ct H I1 natural heart diamond cost?

As of November 2026, 0.20 to 0.49ct H I1 natural heart diamonds typically cost $578 NZD to $874 NZD, with a median price of $745 NZD. There are currently 5 diamonds matching this specification available across retailers.

Where can I find the best price on a H I1 heart diamond?

About 2% of these diamonds are available at multiple retailers, with an average price spread of 21%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct H I1 Natural Heart

Quick answer

As of November 2026, there are 5 natural heart diamonds with H colour and I1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $578 NZD to $874 NZD, with a median of $745 NZD. At least 10 retailers stock this exact specification, and 2% of the stones appear at more than one of them, with an average price spread of 21%. Half of all listings fall between $1,688 NZD and $2,080 NZD per carat. Over the last 30 days the median price moved +0.4% and the number of listings moved +0.8%.

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

0.30ct Heart H I1, IGI, grade B+, from $438 NZD

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: November 2026

Available

Lowest Price

$346 NZD

Highest Price

$944 NZD

Average Price

$724 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

1.6%

Price Spread

20.7%

30-Day Price Trend

+0.4%

30-Day Supply Change

+0.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,070/ct

10th Percentile

$902

Median

$1,070

90th Percentile

$1,308

Score Distribution

39 diamonds scored across 2 quality tiers

Very Good

1 (2.6%)

Average

38 (97.4%)

Find Your Diamond

Search 5 H I1 heart diamonds and compare prices.

Search Diamonds

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