How much does a 1.00 to 1.49ct G IF natural round diamond cost?

As of October 2026, 1.00 to 1.49ct G IF natural round diamonds typically cost £3,041 GBP to £8,819 GBP, with a median price of £4,730 GBP. There are currently 813 diamonds matching this specification available across retailers.

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

About 40% of these diamonds are available at multiple retailers, with an average price spread of 42%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G IF Natural Round

Quick answer

As of October 2026, there are 813 natural round diamonds with G colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £3,041 GBP to £8,819 GBP, with a median of £4,730 GBP. At least 66 retailers stock this exact specification, and 40% of the stones appear at more than one of them, with an average price spread of 42%. Half of all listings fall between £3,920 GBP and £5,943 GBP per carat. The same specification in lab grown form lists at a median of about £356 GBP per carat. Over the last 30 days the median price moved -0.1% and the number of listings moved +12.3%.

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

813

Lowest Price

£1,542 GBP

Highest Price

£18,954 GBP

Average Price

£5,364 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

40.1%

Price Spread

41.9%

30-Day Price Trend

-0.1%

30-Day Supply Change

+12.3%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$6,475/ct

10th Percentile

$4,303

Median

$6,475

90th Percentile

$10,205

Score Distribution

1.9K diamonds scored across 5 quality tiers

Exceptional

76 (4.0%)

Excellent

694 (36.9%)

Very Good

355 (18.9%)

Good

306 (16.3%)

Average

449 (23.9%)

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Consider Instead

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

H IFH colour is visually identical to G to the naked eye

Save 35%

G VVS1VVS1 inclusions are not visible without magnification

Save 8%

Lab-Grown G IFSame specifications, lab-grown origin

Save 93%

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