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

As of October 2026, 1.50 to 1.99ct H IF natural round diamonds typically cost $10,265 AUD to $31,836 AUD, with a median price of $17,061 AUD. There are currently 331 diamonds matching this specification available across retailers.

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

About 36% of these diamonds are available at multiple retailers, with an average price spread of 47%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct H IF Natural Round

Quick answer

As of October 2026, there are 331 natural round diamonds with H colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $10,265 AUD to $31,836 AUD, with a median of $17,061 AUD. At least 60 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 47%. Half of all listings fall between $7,334 AUD and $11,574 AUD per carat. The same specification in lab grown form lists at a median of about $682 AUD per carat. Over the last 30 days the median price moved -2.8% and the number of listings moved +11.9%.

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

331

Lowest Price

$7,781 AUD

Highest Price

$47,349 AUD

Average Price

$19,386 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

36.3%

Price Spread

47.1%

30-Day Price Trend

-2.8%

30-Day Supply Change

+11.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,328/ct

10th Percentile

$4,412

Median

$6,328

90th Percentile

$10,476

Score Distribution

812 diamonds scored across 4 quality tiers

Excellent

186 (22.9%)

Very Good

202 (24.9%)

Good

193 (23.8%)

Average

231 (28.4%)

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Consider Instead

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

Lab-Grown H IFSame specifications, lab-grown origin

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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