How much does a 0.50 to 0.74ct D VS1 lab grown marquise diamond cost?

As of October 2026, 0.50 to 0.74ct D VS1 lab grown marquise diamonds typically cost £115 GBP to £493 GBP, with a median price of £323 GBP. There are currently 618 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 72%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct D VS1 Lab Grown Marquise

Quick answer

As of October 2026, there are 618 lab grown marquise diamonds with D colour and VS1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run £115 GBP to £493 GBP, with a median of £323 GBP. At least 51 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 72%. Half of all listings fall between £294 GBP and £609 GBP per carat. The same specification in natural form lists at a median of about £1,738 GBP per carat. Over the last 30 days the median price moved +5.0% and the number of listings moved -13.8%.

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

618

Lowest Price

£65 GBP

Highest Price

£1,135 GBP

Average Price

£317 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

30.9%

Price Spread

72.1%

30-Day Price Trend

+5.0%

30-Day Supply Change

-13.8%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$583/ct

10th Percentile

$251

Median

$583

90th Percentile

$1,033

Score Distribution

1.6K diamonds scored across 4 quality tiers

Excellent

330 (20.6%)

Very Good

165 (10.3%)

Good

285 (17.8%)

Average

821 (51.3%)

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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