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

As of November 2026, 5.00ct+ D IF lab grown marquise diamonds typically cost $30,481 NZD to $70,795 NZD, with a median price of $48,953 NZD. 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 45% of these diamonds are available at multiple retailers, with an average price spread of 91%. 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 November 2026, there are 9 lab grown marquise diamonds with D colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $30,481 NZD to $70,795 NZD, with a median of $48,953 NZD. At least 28 retailers stock this exact specification, and 45% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between $3,648 NZD and $11,162 NZD per carat. The same specification in natural form lists at a median of about $86,534 NZD per carat. Over the last 30 days the median price moved -3.5% and the number of listings moved +38.8%.

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: November 2026

Available

Lowest Price

$25,135 NZD

Highest Price

$159,795 NZD

Average Price

$53,215 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

45.1%

Price Spread

90.8%

30-Day Price Trend

-3.5%

30-Day Supply Change

+38.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,666/ct

10th Percentile

$1,445

Median

$4,666

90th Percentile

$7,540

Score Distribution

22 diamonds scored across 4 quality tiers

Excellent

9 (40.9%)

Very Good

6 (27.3%)

Good

5 (22.7%)

Average

2 (9.1%)

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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