How much does a 5.00ct+ H IF lab grown radiant diamond cost?

As of October 2026, 5.00ct+ H IF lab grown radiant diamonds typically cost $7,245 AUD to $9,589 AUD, with a median price of $7,545 AUD. There are currently 2 diamonds matching this specification available across retailers.

Where can I find the best price on a H IF radiant diamond?

About 80% of these diamonds are available at multiple retailers, with an average price spread of 74%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ H IF Lab Grown Radiant

Quick answer

As of October 2026, there are 2 lab grown radiant diamonds with H colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $7,245 AUD to $9,589 AUD, with a median of $7,545 AUD. At least 23 retailers stock this exact specification, and 80% of the stones appear at more than one of them, with an average price spread of 74%. Half of all listings fall between $1,595 AUD and $3,188 AUD per carat.

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. Radiant lab grown stones in the index: 474 USD per carat, -2.1% 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

$7,195 AUD

Highest Price

$33,874 AUD

Average Price

$8,147 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

80.0%

Price Spread

73.7%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$1,519/ct

10th Percentile

$936

Median

$1,519

90th Percentile

$2,834

Score Distribution

5 diamonds scored across 2 quality tiers

Excellent

2 (40.0%)

Very Good

3 (60.0%)

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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