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

As of November 2026, 1.00 to 1.49ct G IF natural marquise diamonds typically cost £3,040 GBP to £6,011 GBP, with a median price of £4,262 GBP. There are currently 38 diamonds matching this specification available across retailers.

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

About 33% 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 Marquise

Quick answer

As of November 2026, there are 38 natural marquise diamonds with G colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £3,040 GBP to £6,011 GBP, with a median of £4,262 GBP. At least 55 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 42%. Half of all listings fall between £4,101 GBP and £6,146 GBP per carat. The same specification in lab grown form lists at a median of about £454 GBP per carat. Over the last 30 days the median price moved +2.4% and the number of listings moved -11.0%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Marquise natural stones in the index: 2,177 USD per carat, -4.2% 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

£2,684 GBP

Highest Price

£11,481 GBP

Average Price

£4,448 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

33.1%

Price Spread

42.4%

30-Day Price Trend

+2.4%

30-Day Supply Change

-11.0%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$6,466/ct

10th Percentile

$4,807

Median

$6,466

90th Percentile

$9,969

Score Distribution

71 diamonds scored across 5 quality tiers

Exceptional

5 (7.0%)

Excellent

22 (31.0%)

Very Good

16 (22.5%)

Good

21 (29.6%)

Average

7 (9.9%)

Find Your Diamond

Search 38 G IF marquise diamonds and compare prices.

Search Diamonds

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 28%

Lab-Grown G IFSame specifications, lab-grown origin

Save 91%

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