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

As of October 2026, 1.00 to 1.49ct G VS1 lab grown marquise diamonds typically cost $289 CAD to $1,391 CAD, with a median price of $720 CAD. There are currently 413 diamonds matching this specification available across retailers.

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

About 34% of these diamonds are available at multiple retailers, with an average price spread of 76%. 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 October 2026, there are 413 lab grown marquise diamonds with G color and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $289 CAD to $1,391 CAD, with a median of $720 CAD. At least 53 retailers stock this exact specification, and 34% of the stones appear at more than one of them, with an average price spread of 76%. Half of all listings fall between $452 CAD and $984 CAD per carat. The same specification in natural form lists at a median of about $9,402 CAD per carat. Over the last 30 days the median price moved +7.3% and the number of listings moved +11.8%.

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

413

Lowest Price

$186 CAD

Highest Price

$3,055 CAD

Average Price

$829 CAD

Market Intelligence

Retailers Selling

Cross Retailer %

33.7%

Price Spread

76.5%

30-Day Price Trend

+7.3%

30-Day Supply Change

+11.8%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$498/ct

10th Percentile

$204

Median

$498

90th Percentile

$960

Score Distribution

1.0K diamonds scored across 4 quality tiers

Excellent

154 (15.0%)

Very Good

106 (10.4%)

Good

351 (34.3%)

Average

413 (40.3%)

Find Your Diamond

Search 413 G VS1 marquise diamonds and compare prices.

Search Diamonds

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