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

As of November 2026, 1.00 to 1.49ct I FL natural princess diamonds typically cost £2,072 GBP to £4,571 GBP, with a median price of £2,880 GBP. There are currently 1 diamonds matching this specification available across retailers.

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

About 33% of these diamonds are available at multiple retailers, with an average price spread of 23%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I FL Natural Princess

Quick answer

As of November 2026, there are 1 natural princess diamonds with I colour and FL clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £2,072 GBP to £4,571 GBP, with a median of £2,880 GBP. At least 25 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 23%. Half of all listings fall between £2,290 GBP and £2,868 GBP per carat. Over the last 30 days the median price moved -1.7% and the number of listings moved +11.7%.

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

1.30ct Princess I FL, GIA, grade A, from £2,723 GBP

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. Princess natural stones in the index: 2,158 USD per carat, +5.7% 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: November 2026

Available

Lowest Price

£2,033 GBP

Highest Price

£6,147 GBP

Average Price

£3,201 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

33.3%

Price Spread

22.8%

30-Day Price Trend

-1.7%

30-Day Supply Change

+11.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$3,390/ct

10th Percentile

$2,785

Median

$3,390

90th Percentile

$4,353

Score Distribution

8 diamonds scored across 3 quality tiers

Excellent

1 (12.5%)

Very Good

2 (25.0%)

Good

5 (62.5%)

Find Your Diamond

Search 1 I FL princess diamonds and compare prices.

Search Diamonds

Consider Instead

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

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

Save 29%

I IFIF inclusions are not visible without magnification

Save 15%

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