How much does a 0.75 to 0.99ct G IF lab grown round diamond cost?

As of October 2026, 0.75 to 0.99ct G IF lab grown round diamonds typically cost £112 GBP to £1,031 GBP, with a median price of £236 GBP. There are currently 7 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 87%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct G IF Lab Grown Round

Quick answer

As of October 2026, there are 7 lab grown round diamonds with G colour and IF clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run £112 GBP to £1,031 GBP, with a median of £236 GBP. At least 30 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 87%. Half of all listings fall between £253 GBP and £567 GBP per carat. The same specification in natural form lists at a median of about £3,180 GBP per carat. Over the last 30 days the median price moved -30.3% and the number of listings moved +7.2%.

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 lab grown stones in the index: 414 USD per carat, -5.0% 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

Lowest Price

£108 GBP

Highest Price

£1,065 GBP

Average Price

£421 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

38.2%

Price Spread

87.4%

30-Day Price Trend

-30.3%

30-Day Supply Change

+7.2%

Volatility (30d)

0.09

Price Range

Price per carat distribution across retailers

$477/ct

10th Percentile

$203

Median

$477

90th Percentile

$1,028

Score Distribution

13 diamonds scored across 4 quality tiers

Excellent

3 (23.1%)

Very Good

2 (15.4%)

Good

7 (53.8%)

Average

1 (7.7%)

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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