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

As of October 2026, 3.00 to 4.99ct F FL lab grown marquise diamonds typically cost $8,642 AUD to $17,548 AUD, with a median price of $13,095 AUD. There are currently 2 diamonds matching this specification available across retailers.

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

About 100% of these diamonds are available at multiple retailers, with an average price spread of 113%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct F FL Lab Grown Marquise

Quick answer

As of October 2026, there are 2 lab grown marquise diamonds with F colour and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $8,642 AUD to $17,548 AUD, with a median of $13,095 AUD. At least 17 retailers stock this exact specification, and 100% of the stones appear at more than one of them, with an average price spread of 113%. Half of all listings fall between $1,745 AUD and $4,680 AUD per carat. Over the last 30 days the median price moved -30.8% and the number of listings moved +78.5%.

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. Marquise lab grown stones in the index: 485 USD per carat, -3.2% 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

$7,529 AUD

Highest Price

$31,865 AUD

Average Price

$13,095 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

100.0%

Price Spread

112.9%

30-Day Price Trend

-30.8%

30-Day Supply Change

+78.5%

Volatility (30d)

0.06

Price Range

Price per carat distribution across retailers

$1,827/ct

10th Percentile

$1,176

Median

$1,827

90th Percentile

$3,436

Score Distribution

2 diamonds scored across 1 quality tiers

Excellent

2 (100.0%)

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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