How much does a 1.00 to 1.49ct G VS1 lab grown marquise diamond cost?

As of November 2026, 1.00 to 1.49ct G VS1 lab grown marquise diamonds typically cost $310 AUD to $1,378 AUD, with a median price of $728 AUD. There are currently 402 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 75%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G VS1 Lab Grown Marquise

Quick answer

As of November 2026, there are 402 lab grown marquise diamonds with G colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $310 AUD to $1,378 AUD, with a median of $728 AUD. At least 53 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 75%. Half of all listings fall between $464 AUD and $1,002 AUD per carat. The same specification in natural form lists at a median of about $9,755 AUD per carat. Over the last 30 days the median price moved +7.0% and the number of listings moved +9.8%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise lab grown stones in the index: 505 USD per carat, +1.6% 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

402

Lowest Price

$190 AUD

Highest Price

$3,121 AUD

Average Price

$828 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

32.3%

Price Spread

75.3%

30-Day Price Trend

+7.0%

30-Day Supply Change

+9.8%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$500/ct

10th Percentile

$202

Median

$500

90th Percentile

$955

Score Distribution

984 diamonds scored across 4 quality tiers

Excellent

151 (15.3%)

Very Good

80 (8.1%)

Good

373 (37.9%)

Average

380 (38.6%)

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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