How much does a 0.75 to 0.99ct G IF lab grown cushion diamond cost?

As of October 2026, 0.75 to 0.99ct G IF lab grown cushion diamonds typically cost $495 NZD to $1,966 NZD, with a median price of $789 NZD. There are currently 1 diamonds matching this specification available across retailers.

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

About 11% of these diamonds are available at multiple retailers, with an average price spread of 74%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct G IF Lab Grown Cushion

Quick answer

As of October 2026, there are 1 lab grown cushion diamonds with G colour and IF clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $495 NZD to $1,966 NZD, with a median of $789 NZD. At least 20 retailers stock this exact specification, and 11% of the stones appear at more than one of them, with an average price spread of 74%. Half of all listings fall between $991 NZD and $2,196 NZD per carat. The same specification in natural form lists at a median of about $3,671 NZD per carat.

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

0.85ct Cushion G IF, IGI, grade A, from $422 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. Cushion lab grown stones in the index: 516 USD per carat, +6.9% 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

Lowest Price

$422 NZD

Highest Price

$2,260 NZD

Average Price

$1,157 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

11.1%

Price Spread

74.3%

Price Range

Price per carat distribution across retailers

$910/ct

10th Percentile

$449

Median

$910

90th Percentile

$1,470

Score Distribution

3 diamonds scored across 3 quality tiers

Excellent

1 (33.3%)

Good

1 (33.3%)

Average

1 (33.3%)

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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