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

As of November 2026, 1.00 to 1.49ct G IF natural cushion diamonds typically cost £1,627 GBP to £5,217 GBP, with a median price of £2,989 GBP. There are currently 55 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 68%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G IF Natural Cushion

Quick answer

As of November 2026, there are 55 natural cushion diamonds with G colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £1,627 GBP to £5,217 GBP, with a median of £2,989 GBP. At least 55 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 68%. Half of all listings fall between £2,194 GBP and £4,372 GBP per carat. The same specification in lab grown form lists at a median of about £660 GBP per carat. Over the last 30 days the median price moved +12.6% and the number of listings moved +9.0%.

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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

£1,146 GBP

Highest Price

£9,890 GBP

Average Price

£3,191 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

32.1%

Price Spread

67.7%

30-Day Price Trend

+12.6%

30-Day Supply Change

+9.0%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$4,310/ct

10th Percentile

$2,339

Median

$4,310

90th Percentile

$7,492

Score Distribution

142 diamonds scored across 5 quality tiers

Exceptional

1 (0.7%)

Excellent

42 (29.6%)

Very Good

31 (21.8%)

Good

20 (14.1%)

Average

48 (33.8%)

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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 39%

G VVS1VVS1 inclusions are not visible without magnification

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Lab-Grown G IFSame specifications, lab-grown origin

Save 81%

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