How much does a 3.00 to 4.99ct D IF lab grown radiant diamond cost?

As of September 2026, 3.00 to 4.99ct D IF lab grown radiant diamonds typically cost $2,454 AUD to $16,386 AUD, with a median price of $6,168 AUD. There are currently 5,580 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct D IF Lab Grown Radiant

Quick answer

As of September 2026, there are 5,580 lab grown radiant diamonds with D colour and IF clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $2,454 AUD to $16,386 AUD, with a median of $6,168 AUD. At least 43 retailers stock this exact specification. Half of all listings fall between $1,085 AUD and $3,625 AUD per carat. The same specification in natural form lists at a median of about $23,420 AUD per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Radiant lab grown stones in the index: 473 USD per carat, -12.5% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

5,580

Lowest Price

$1,241 AUD

Highest Price

$92,873 AUD

Average Price

$8,610 AUD

Market Intelligence

Retailers Selling

Price Spread

149.9%

Price Range

Price per carat distribution across retailers

$1,215/ct

10th Percentile

$581

Median

$1,215

90th Percentile

$3,311

Score Distribution

5.6K diamonds scored across 5 quality tiers

Exceptional

15 (0.3%)

Excellent

1,868 (33.5%)

Very Good

1,342 (24.1%)

Good

1,370 (24.6%)

Average

985 (17.7%)

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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