How much does a 1.50 to 1.99ct G IF natural round diamond cost?

As of October 2026, 1.50 to 1.99ct G IF natural round diamonds typically cost $14,178 AUD to $41,682 AUD, with a median price of $21,759 AUD. There are currently 314 diamonds matching this specification available across retailers.

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

About 35% of these diamonds are available at multiple retailers, with an average price spread of 43%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G IF Natural Round

Quick answer

As of October 2026, there are 314 natural round diamonds with G colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $14,178 AUD to $41,682 AUD, with a median of $21,759 AUD. At least 64 retailers stock this exact specification, and 35% of the stones appear at more than one of them, with an average price spread of 43%. Half of all listings fall between $12,139 AUD and $18,553 AUD per carat. The same specification in lab grown form lists at a median of about $808 AUD per carat. Over the last 30 days the median price moved -0.2% and the number of listings moved +15.5%.

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

314

Lowest Price

$9,335 AUD

Highest Price

$66,300 AUD

Average Price

$25,323 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

35.4%

Price Spread

43.4%

30-Day Price Trend

-0.2%

30-Day Supply Change

+15.5%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$10,406/ct

10th Percentile

$7,084

Median

$10,406

90th Percentile

$16,191

Score Distribution

838 diamonds scored across 5 quality tiers

Exceptional

12 (1.4%)

Excellent

295 (35.2%)

Very Good

198 (23.6%)

Good

106 (12.6%)

Average

227 (27.1%)

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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

Save 39%

G VVS1VVS1 inclusions are not visible without magnification

Save 5%

Lab-Grown G IFSame specifications, lab-grown origin

Save 95%

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