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

As of October 2026, 3.00 to 4.99ct F FL lab grown cushion diamonds typically cost $4,612 AUD to $15,628 AUD, with a median price of $6,239 AUD. There are currently 8 diamonds matching this specification available across retailers.

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

About 42% of these diamonds are available at multiple retailers, with an average price spread of 108%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct F FL Lab Grown Cushion

Quick answer

As of October 2026, there are 8 lab grown cushion diamonds with F colour and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $4,612 AUD to $15,628 AUD, with a median of $6,239 AUD. At least 26 retailers stock this exact specification, and 42% of the stones appear at more than one of them, with an average price spread of 108%. Half of all listings fall between $1,689 AUD and $4,575 AUD per carat. Over the last 30 days the median price moved -7.8% and the number of listings moved +13.3%.

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 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

$2,714 AUD

Highest Price

$36,339 AUD

Average Price

$7,852 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

41.7%

Price Spread

107.7%

30-Day Price Trend

-7.8%

30-Day Supply Change

+13.3%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,883/ct

10th Percentile

$1,029

Median

$1,883

90th Percentile

$3,770

Score Distribution

22 diamonds scored across 4 quality tiers

Excellent

8 (36.4%)

Very Good

2 (9.1%)

Good

10 (45.5%)

Average

2 (9.1%)

Find Your Diamond

Search 8 F FL cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

F IFIF inclusions are not visible without magnification

Save 44%

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