How much does a 3.00 to 4.99ct G VS1 lab grown marquise diamond cost?

As of November 2026, 3.00 to 4.99ct G VS1 lab grown marquise diamonds typically cost $585 AUD to $5,877 AUD, with a median price of $2,062 AUD. There are currently 1,695 diamonds matching this specification available across retailers.

Where can I find the best price on a G VS1 marquise diamond?

About 47% of these diamonds are available at multiple retailers, with an average price spread of 106%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G VS1 Lab Grown Marquise

Quick answer

As of November 2026, there are 1,695 lab grown marquise diamonds with G colour and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $585 AUD to $5,877 AUD, with a median of $2,062 AUD. At least 58 retailers stock this exact specification, and 47% of the stones appear at more than one of them, with an average price spread of 106%. Half of all listings fall between $391 AUD and $1,146 AUD per carat. The same specification in natural form lists at a median of about $32,232 AUD per carat. Over the last 30 days the median price moved +27.6% and the number of listings moved +44.0%.

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: November 2026

Available

1,695

Lowest Price

$448 AUD

Highest Price

$14,635 AUD

Average Price

$2,559 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

47.1%

Price Spread

106.2%

30-Day Price Trend

+27.6%

30-Day Supply Change

+44.0%

Volatility (30d)

0.12

Price Range

Price per carat distribution across retailers

$500/ct

10th Percentile

$173

Median

$500

90th Percentile

$993

Score Distribution

2.7K diamonds scored across 4 quality tiers

Excellent

996 (36.4%)

Very Good

439 (16.1%)

Good

602 (22.0%)

Average

697 (25.5%)

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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