How much does a 0.20 to 0.49ct D VS1 lab grown marquise diamond cost?

As of October 2026, 0.20 to 0.49ct D VS1 lab grown marquise diamonds typically cost $118 AUD to $536 AUD, with a median price of $229 AUD. There are currently 306 diamonds matching this specification available across retailers.

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

About 62% of these diamonds are available at multiple retailers, with an average price spread of 174%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct D VS1 Lab Grown Marquise

Quick answer

As of October 2026, there are 306 lab grown marquise diamonds with D colour and VS1 clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $118 AUD to $536 AUD, with a median of $229 AUD. At least 20 retailers stock this exact specification, and 62% of the stones appear at more than one of them, with an average price spread of 174%. Half of all listings fall between $376 AUD and $1,198 AUD per carat. The same specification in natural form lists at a median of about $2,547 AUD per carat. Over the last 30 days the median price moved +19.4% and the number of listings moved +56.0%.

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

306

Lowest Price

$74 AUD

Highest Price

$1,323 AUD

Average Price

$296 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

61.6%

Price Spread

173.8%

30-Day Price Trend

+19.4%

30-Day Supply Change

+56.0%

Volatility (30d)

0.08

Price Range

Price per carat distribution across retailers

$332/ct

10th Percentile

$230

Median

$332

90th Percentile

$1,056

Score Distribution

846 diamonds scored across 4 quality tiers

Excellent

271 (32.0%)

Very Good

178 (21.0%)

Good

175 (20.7%)

Average

222 (26.2%)

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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