How much does a 3.00 to 4.99ct G IF natural cushion diamond cost?

As of October 2026, 3.00 to 4.99ct G IF natural cushion diamonds typically cost $57,419 AUD to $95,575 AUD, with a median price of $82,227 AUD. There are currently 5 diamonds matching this specification available across retailers.

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

About 28% of these diamonds are available at multiple retailers, with an average price spread of 46%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G IF Natural Cushion

Quick answer

As of October 2026, there are 5 natural cushion diamonds with G colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $57,419 AUD to $95,575 AUD, with a median of $82,227 AUD. At least 30 retailers stock this exact specification, and 28% of the stones appear at more than one of them, with an average price spread of 46%. Half of all listings fall between $18,910 AUD and $29,479 AUD per carat. The same specification in lab grown form lists at a median of about $1,791 AUD per carat. Over the last 30 days the median price moved +4.7% and the number of listings moved -9.8%.

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: October 2026

Available

Lowest Price

$52,796 AUD

Highest Price

$107,805 AUD

Average Price

$77,877 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

28.0%

Price Spread

45.9%

30-Day Price Trend

+4.7%

30-Day Supply Change

-9.8%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$16,167/ct

10th Percentile

$12,473

Median

$16,167

90th Percentile

$26,015

Score Distribution

9 diamonds scored across 4 quality tiers

Excellent

1 (11.1%)

Very Good

2 (22.2%)

Good

5 (55.6%)

Average

1 (11.1%)

Find Your Diamond

Search 5 G IF cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

Lab-Grown G IFSame specifications, lab-grown origin

Save 94%

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