How much does a 2.00 to 2.99ct F SI1 natural round diamond cost?

As of October 2026, 2.00 to 2.99ct F SI1 natural round diamonds typically cost $27,133 NZD to $65,616 NZD, with a median price of $42,671 NZD. There are currently 482 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 round diamond?

About 33% of these diamonds are available at multiple retailers, with an average price spread of 33%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct F SI1 Natural Round

Quick answer

As of October 2026, there are 482 natural round diamonds with F colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run $27,133 NZD to $65,616 NZD, with a median of $42,671 NZD. At least 66 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 33%. Half of all listings fall between $14,300 NZD and $19,761 NZD per carat. The same specification in lab grown form lists at a median of about $647 NZD per carat. Over the last 30 days the median price moved -1.6% and the number of listings moved +10.0%.

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

482

Lowest Price

$10,297 NZD

Highest Price

$113,700 NZD

Average Price

$44,265 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

32.9%

Price Spread

32.6%

30-Day Price Trend

-1.6%

30-Day Supply Change

+10.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$9,434/ct

10th Percentile

$6,910

Median

$9,434

90th Percentile

$12,975

Score Distribution

1.3K diamonds scored across 4 quality tiers

Excellent

71 (5.4%)

Very Good

323 (24.5%)

Good

273 (20.7%)

Average

649 (49.3%)

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Consider Instead

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

F SI2SI2 inclusions are not visible without magnification

Save 32%

Lab-Grown F SI1Same specifications, lab-grown origin

Save 96%

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