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

As of October 2026, 5.00ct+ D IF lab grown radiant diamonds typically cost $11,374 AUD to $49,215 AUD, with a median price of $23,736 AUD. There are currently 83 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 95%. A comparison tool like Carat Hunter lets you see all the prices side by side.

5.00ct+ D IF Lab Grown Radiant

Quick answer

As of October 2026, there are 83 lab grown radiant diamonds with D colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $11,374 AUD to $49,215 AUD, with a median of $23,736 AUD. At least 41 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 95%. Half of all listings fall between $2,770 AUD and $6,148 AUD per carat. Over the last 30 days the median price moved -11.1% and the number of listings moved +22.1%.

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

$5,710 AUD

Highest Price

$118,889 AUD

Average Price

$27,286 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

35.9%

Price Spread

94.5%

30-Day Price Trend

-11.1%

30-Day Supply Change

+22.1%

Volatility (30d)

0.06

Price Range

Price per carat distribution across retailers

$2,510/ct

10th Percentile

$1,573

Median

$2,510

90th Percentile

$5,853

Score Distribution

299 diamonds scored across 5 quality tiers

Exceptional

1 (0.3%)

Excellent

87 (29.1%)

Very Good

78 (26.1%)

Good

116 (38.8%)

Average

17 (5.7%)

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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