How much does a 0.50 to 0.74ct G I1 natural cushion diamond cost?

As of November 2026, 0.50 to 0.74ct G I1 natural cushion diamonds typically cost $833 NZD to $1,811 NZD, with a median price of $1,098 NZD. There are currently 24 diamonds matching this specification available across retailers.

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

About 8% of these diamonds are available at multiple retailers, with an average price spread of 28%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct G I1 Natural Cushion

Quick answer

As of November 2026, there are 24 natural cushion diamonds with G colour and I1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $833 NZD to $1,811 NZD, with a median of $1,098 NZD. At least 15 retailers stock this exact specification, and 8% of the stones appear at more than one of them, with an average price spread of 28%. Half of all listings fall between $1,597 NZD and $2,079 NZD per carat. Over the last 30 days the median price moved -1.1% and the number of listings moved -5.9%.

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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

$688 NZD

Highest Price

$2,740 NZD

Average Price

$1,210 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

8.4%

Price Spread

27.8%

30-Day Price Trend

-1.1%

30-Day Supply Change

-5.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$977/ct

10th Percentile

$840

Median

$977

90th Percentile

$1,500

Score Distribution

82 diamonds scored across 2 quality tiers

Good

14 (17.1%)

Average

68 (82.9%)

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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