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

As of October 2026, 1.00 to 1.49ct D VS1 lab grown marquise diamonds typically cost £158 GBP to £765 GBP, with a median price of £409 GBP. There are currently 3,896 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 80%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct D VS1 Lab Grown Marquise

Quick answer

As of October 2026, there are 3,896 lab grown marquise diamonds with D colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £158 GBP to £765 GBP, with a median of £409 GBP. At least 56 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 80%. Half of all listings fall between £229 GBP and £518 GBP per carat. The same specification in natural form lists at a median of about £6,452 GBP per carat. Over the last 30 days the median price moved +11.9% and the number of listings moved -4.2%.

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

3,896

Lowest Price

£111 GBP

Highest Price

£1,667 GBP

Average Price

£421 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

38.3%

Price Spread

80.4%

30-Day Price Trend

+11.9%

30-Day Supply Change

-4.2%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$478/ct

10th Percentile

$200

Median

$478

90th Percentile

$930

Score Distribution

9.9K diamonds scored across 5 quality tiers

Exceptional

2 (0.0%)

Excellent

3,023 (30.6%)

Very Good

1,215 (12.3%)

Good

2,142 (21.7%)

Average

3,489 (35.3%)

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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