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

As of September 2026, 3.00 to 4.99ct G VS1 lab grown marquise diamonds typically cost $603 USD to $4,257 USD, with a median price of $1,531 USD. There are currently 3,437 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

3.00 to 4.99ct G VS1 Lab Grown Marquise

Quick answer

As of September 2026, there are 3,437 lab grown marquise diamonds with G color and VS1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $603 USD to $4,257 USD, with a median of $1,531 USD. At least 50 retailers stock this exact specification. Half of all listings fall between $306 USD and $768 USD per carat. The same specification in natural form lists at a median of about $23,355 USD per carat.

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

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. Marquise lab grown stones in the index: 500 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

3,437

Lowest Price

$295 USD

Highest Price

$48,725 USD

Average Price

$2,119 USD

Market Intelligence

Retailers Selling

Price Spread

101.5%

Price Range

Price per carat distribution across retailers

$455/ct

10th Percentile

$240

Median

$455

90th Percentile

$1,312

Score Distribution

3.4K diamonds scored across 4 quality tiers

Excellent

704 (20.5%)

Very Good

704 (20.5%)

Good

823 (23.9%)

Average

1,206 (35.1%)

Find Your Diamond

Search 3,437 G VS1 marquise diamonds and compare prices.

Search Diamonds

Consider Instead

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

H VS1H colour is visually identical to G to the naked eye

Save 17%

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