How much does a 1.00 to 1.49ct I IF natural princess diamond cost?

As of September 2026, 1.00 to 1.49ct I IF natural princess diamonds typically cost $1,929 SGD to $6,904 SGD, with a median price of $3,293 SGD. There are currently 145 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct I IF Natural Princess

Quick answer

As of September 2026, there are 145 natural princess diamonds with I colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $1,929 SGD to $6,904 SGD, with a median of $3,293 SGD. At least 49 retailers stock this exact specification. Half of all listings fall between $2,999 SGD and $4,540 SGD per carat. The same specification in lab grown form lists at a median of about $3,066 SGD per carat.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Princess natural stones in the index: 2,073 USD per carat, -3.2% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

145

Lowest Price

$1,517 SGD

Highest Price

$11,255 SGD

Average Price

$3,916 SGD

Market Intelligence

Retailers Selling

Price Spread

42.3%

Price Range

Price per carat distribution across retailers

$2,733/ct

10th Percentile

$1,825

Median

$2,733

90th Percentile

$4,425

Score Distribution

145 diamonds scored across 4 quality tiers

Excellent

51 (35.2%)

Very Good

35 (24.1%)

Good

31 (21.4%)

Average

28 (19.3%)

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Consider Instead

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

J IFJ colour is visually identical to I to the naked eye

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Lab-Grown I 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