How much does a 5.00ct+ D IF lab grown marquise diamond cost?

As of October 2026, 5.00ct+ D IF lab grown marquise diamonds typically cost $17,253 USD to $35,342 USD, with a median price of $26,116 USD. There are currently 9 diamonds matching this specification available across retailers.

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

About 46% of these diamonds are available at multiple retailers, with an average price spread of 93%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ D IF Lab Grown Marquise

Quick answer

As of October 2026, there are 9 lab grown marquise diamonds with D color and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $17,253 USD to $35,342 USD, with a median of $26,116 USD. At least 28 retailers stock this exact specification, and 46% of the stones appear at more than one of them, with an average price spread of 93%. Half of all listings fall between $1,976 USD and $6,348 USD per carat. Over the last 30 days the median price moved -8.5% and the number of listings moved +54.9%.

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

Lowest Price

$14,166 USD

Highest Price

$53,937 USD

Average Price

$27,266 USD

Market Intelligence

Retailers Selling

Cross Retailer %

46.0%

Price Spread

93.1%

30-Day Price Trend

-8.5%

30-Day Supply Change

+54.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,698/ct

10th Percentile

$1,445

Median

$4,698

90th Percentile

$7,787

Score Distribution

24 diamonds scored across 4 quality tiers

Excellent

10 (41.7%)

Very Good

4 (16.7%)

Good

9 (37.5%)

Average

1 (4.2%)

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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