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

As of October 2026, 5.00ct+ G IF lab grown radiant diamonds typically cost $4,685 AUD to $22,615 AUD, with a median price of $12,632 AUD. There are currently 6 diamonds matching this specification available across retailers.

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

About 53% 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+ G IF Lab Grown Radiant

Quick answer

As of October 2026, there are 6 lab grown radiant diamonds with G colour and IF clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $4,685 AUD to $22,615 AUD, with a median of $12,632 AUD. At least 34 retailers stock this exact specification, and 53% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between $1,694 AUD and $3,985 AUD per carat. Over the last 30 days the median price moved -14.8% and the number of listings moved +13.3%.

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

$4,342 AUD

Highest Price

$85,872 AUD

Average Price

$14,556 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

53.5%

Price Spread

91.0%

30-Day Price Trend

-14.8%

30-Day Supply Change

+13.3%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$1,768/ct

10th Percentile

$711

Median

$1,768

90th Percentile

$4,080

Score Distribution

18 diamonds scored across 4 quality tiers

Excellent

9 (50.0%)

Very Good

6 (33.3%)

Good

1 (5.6%)

Average

2 (11.1%)

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Consider Instead

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

H IFH colour is visually identical to G to the naked eye

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G 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