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

As of October 2026, 5.00ct+ E IF lab grown marquise diamonds typically cost $9,190 AUD to $34,022 AUD, with a median price of $10,028 AUD. There are currently 8 diamonds matching this specification available across retailers.

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

About 46% 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+ E IF Lab Grown Marquise

Quick answer

As of October 2026, there are 8 lab grown marquise diamonds with E colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $9,190 AUD to $34,022 AUD, with a median of $10,028 AUD. 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 91%. Half of all listings fall between $2,929 AUD and $8,941 AUD per carat. Over the last 30 days the median price moved -3.2% and the number of listings moved +38.2%.

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

Lowest Price

$8,374 AUD

Highest Price

$68,094 AUD

Average Price

$17,398 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

46.0%

Price Spread

91.1%

30-Day Price Trend

-3.2%

30-Day Supply Change

+38.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,635/ct

10th Percentile

$1,445

Median

$4,635

90th Percentile

$7,364

Score Distribution

19 diamonds scored across 3 quality tiers

Excellent

10 (52.6%)

Very Good

8 (42.1%)

Good

1 (5.3%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F IFF colour is visually identical to E to the naked eye

Save 48%

E VVS1VVS1 inclusions are not visible without magnification

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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