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

As of October 2026, 1.50 to 1.99ct J IF natural round diamonds typically cost $6,902 AUD to $23,632 AUD, with a median price of $11,534 AUD. There are currently 223 diamonds matching this specification available across retailers.

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

About 39% of these diamonds are available at multiple retailers, with an average price spread of 49%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct J IF Natural Round

Quick answer

As of October 2026, there are 223 natural round diamonds with J colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run $6,902 AUD to $23,632 AUD, with a median of $11,534 AUD. At least 57 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 49%. Half of all listings fall between $5,199 AUD and $8,371 AUD per carat. Over the last 30 days the median price moved -3.5% and the number of listings moved +18.9%.

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

223

Lowest Price

$4,190 AUD

Highest Price

$34,026 AUD

Average Price

$13,554 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

39.0%

Price Spread

49.0%

30-Day Price Trend

-3.5%

30-Day Supply Change

+18.9%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$4,552/ct

10th Percentile

$3,056

Median

$4,552

90th Percentile

$7,566

Score Distribution

688 diamonds scored across 4 quality tiers

Excellent

150 (21.8%)

Very Good

134 (19.5%)

Good

154 (22.4%)

Average

250 (36.3%)

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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