How much does a 1.00 to 1.49ct H I1 natural round diamond cost?

As of October 2026, 1.00 to 1.49ct H I1 natural round diamonds typically cost $2,371 NZD to $7,906 NZD, with a median price of $4,437 NZD. There are currently 571 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 68%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct H I1 Natural Round

Quick answer

As of October 2026, there are 571 natural round diamonds with H colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $2,371 NZD to $7,906 NZD, with a median of $4,437 NZD. At least 31 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 68%. Half of all listings fall between $2,525 NZD and $4,822 NZD per carat. The same specification in lab grown form lists at a median of about $1,519 NZD per carat. Over the last 30 days the median price moved -6.2% and the number of listings moved +8.3%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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

571

Lowest Price

$1,196 NZD

Highest Price

$14,450 NZD

Average Price

$4,883 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

31.1%

Price Spread

67.5%

30-Day Price Trend

-6.2%

30-Day Supply Change

+8.3%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,916/ct

10th Percentile

$1,071

Median

$1,916

90th Percentile

$3,696

Score Distribution

1.5K diamonds scored across 4 quality tiers

Excellent

88 (6.0%)

Very Good

314 (21.5%)

Good

235 (16.1%)

Average

822 (56.3%)

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Consider Instead

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

Lab-Grown H I1Same specifications, lab-grown origin

Save 36%

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