How much does a 3.00 to 4.99ct H I1 natural cushion diamond cost?

As of November 2026, 3.00 to 4.99ct H I1 natural cushion diamonds typically cost $34,671 NZD to $181,694 NZD, with a median price of $133,876 NZD. There are currently 1 diamonds matching this specification available across retailers.

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

About 26% of these diamonds are available at multiple retailers, with an average price spread of 43%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct H I1 Natural Cushion

Quick answer

As of November 2026, there are 1 natural cushion diamonds with H colour and I1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $34,671 NZD to $181,694 NZD, with a median of $133,876 NZD. At least 9 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 43%. Half of all listings fall between $8,716 NZD and $13,582 NZD per carat.

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

3.00ct Cushion H I1, GIA, grade B+, from $25,257 NZD

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. Cushion natural stones in the index: 2,881 USD per carat, -2.5% 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

$25,257 NZD

Highest Price

$200,034 NZD

Average Price

$117,824 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

26.1%

Price Spread

42.8%

Price Range

Price per carat distribution across retailers

$6,393/ct

10th Percentile

$3,975

Median

$6,393

90th Percentile

$9,887

Score Distribution

13 diamonds scored across 2 quality tiers

Very Good

1 (7.7%)

Average

12 (92.3%)

Find Your Diamond

Search 1 H I1 cushion 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