How much does a 0.50 to 0.74ct I IF lab grown round diamond cost?

As of October 2026, 0.50 to 0.74ct I IF lab grown round diamonds typically cost $698 AUD to $1,452 AUD, with a median price of $840 AUD. There are currently 0 diamonds matching this specification available across retailers.

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

About 17% 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.

0.50 to 0.74ct I IF Lab Grown Round

Quick answer

As of October 2026, there are 0 lab grown round diamonds with I colour and IF clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $698 AUD to $1,452 AUD, with a median of $840 AUD. At least 28 retailers stock this exact specification, and 17% of the stones appear at more than one of them, with an average price spread of 91%. Half of all listings fall between $792 AUD and $2,021 AUD per carat. The same specification in natural form lists at a median of about $2,690 AUD per carat. Over the last 30 days the median price moved -44.5% and the number of listings moved -76.8%.

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. Round lab grown stones in the index: 414 USD per carat, -5.0% 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

$662 AUD

Highest Price

$2,669 AUD

Average Price

$1,015 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

16.7%

Price Spread

90.8%

30-Day Price Trend

-44.5%

30-Day Supply Change

-76.8%

Volatility (30d)

0.31

Price Range

Price per carat distribution across retailers

$951/ct

10th Percentile

$352

Median

$951

90th Percentile

$2,309

Score Distribution

12 diamonds scored across 3 quality tiers

Very Good

4 (33.3%)

Good

7 (58.3%)

Average

1 (8.3%)

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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