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

As of October 2026, 3.00 to 4.99ct D FL lab grown marquise diamonds typically cost $5,038 AUD to $20,278 AUD, with a median price of $11,578 AUD. There are currently 168 diamonds matching this specification available across retailers.

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

About 47% of these diamonds are available at multiple retailers, with an average price spread of 81%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct D FL Lab Grown Marquise

Quick answer

As of October 2026, there are 168 lab grown marquise diamonds with D colour and FL clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $5,038 AUD to $20,278 AUD, with a median of $11,578 AUD. At least 36 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 81%. Half of all listings fall between $2,327 AUD and $5,210 AUD per carat. Over the last 30 days the median price moved -17.5% and the number of listings moved +24.7%.

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

168

Lowest Price

$4,457 AUD

Highest Price

$65,733 AUD

Average Price

$12,763 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

46.8%

Price Spread

80.5%

30-Day Price Trend

-17.5%

30-Day Supply Change

+24.7%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$2,515/ct

10th Percentile

$1,261

Median

$2,515

90th Percentile

$4,720

Score Distribution

484 diamonds scored across 5 quality tiers

Exceptional

57 (11.8%)

Excellent

139 (28.7%)

Very Good

24 (5.0%)

Good

172 (35.5%)

Average

92 (19.0%)

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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