How much does a 0.20 to 0.49ct G IF natural round diamond cost?

As of October 2026, 0.20 to 0.49ct G IF natural round diamonds typically cost $630 NZD to $2,079 NZD, with a median price of $1,113 NZD. There are currently 4,778 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 54%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.20 to 0.49ct G IF Natural Round

Quick answer

As of October 2026, there are 4,778 natural round diamonds with G colour and IF clarity in the 0.20 to 0.49ct range available across retailers worldwide. Prices typically run $630 NZD to $2,079 NZD, with a median of $1,113 NZD. At least 37 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 54%. Half of all listings fall between $2,682 NZD and $4,479 NZD per carat. The same specification in lab grown form lists at a median of about $1,768 NZD per carat. Over the last 30 days the median price moved -8.6% and the number of listings moved -15.7%.

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. Round natural stones in the index: 2,248 USD per carat, +7.6% 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

4,778

Lowest Price

$252 NZD

Highest Price

$5,147 NZD

Average Price

$1,249 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

30.6%

Price Spread

54.2%

30-Day Price Trend

-8.6%

30-Day Supply Change

-15.7%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$1,870/ct

10th Percentile

$1,234

Median

$1,870

90th Percentile

$3,301

Score Distribution

9.1K diamonds scored across 5 quality tiers

Exceptional

366 (4.0%)

Excellent

2,944 (32.4%)

Very Good

1,929 (21.2%)

Good

1,689 (18.6%)

Average

2,169 (23.8%)

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

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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