How much does a 3.00 to 4.99ct G FL lab grown cushion diamond cost?

As of September 2026, 3.00 to 4.99ct G FL lab grown cushion diamonds typically cost $2,828 AUD to $2,828 AUD, with a median price of $2,828 AUD. There are currently 1 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct G FL Lab Grown Cushion

Quick answer

As of September 2026, there are 1 lab grown cushion diamonds with G colour and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $2,828 AUD to $2,828 AUD, with a median of $2,828 AUD. At least 22 retailers stock this exact specification. Half of all listings fall between $1,964 AUD and $5,235 AUD per carat.

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

3.00ct Cushion G FL, IGI, score 85 of 100, from $2,828 AUD

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Cushion lab grown stones in the index: 466 USD per carat, -14.7% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

Lowest Price

$2,828 AUD

Highest Price

$11,084 AUD

Average Price

$2,828 AUD

Market Intelligence

Retailers Selling

Price Spread

87.0%

Price Range

Price per carat distribution across retailers

$2,696/ct

10th Percentile

$1,047

Median

$2,696

90th Percentile

$5,498

Score Distribution

1 diamonds scored across 1 quality tiers

Excellent

1 (100.0%)

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