How much does a 1.50 to 1.99ct G IF lab grown heart diamond cost?

As of October 2026, 1.50 to 1.99ct G IF lab grown heart diamonds typically cost £363 GBP to £1,201 GBP, with a median price of £448 GBP. There are currently 1 diamonds matching this specification available across retailers.

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

About 50% of these diamonds are available at multiple retailers, with an average price spread of 100%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G IF Lab Grown Heart

Quick answer

As of October 2026, there are 1 lab grown heart diamonds with G colour and IF clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £363 GBP to £1,201 GBP, with a median of £448 GBP. At least 38 retailers stock this exact specification, and 50% of the stones appear at more than one of them, with an average price spread of 100%. Half of all listings fall between £276 GBP and £782 GBP per carat. The same specification in natural form lists at a median of about £5,795 GBP per carat. Over the last 30 days the median price moved -25.1% and the number of listings moved +56.8%.

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

1.93ct Heart G IF, IGI, grade A, from £341 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. Heart lab grown stones in the index: 421 USD per carat, -1.8% 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

£341 GBP

Highest Price

£1,581 GBP

Average Price

£726 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

50.0%

Price Spread

99.9%

30-Day Price Trend

-25.1%

30-Day Supply Change

+56.8%

Volatility (30d)

0.09

Price Range

Price per carat distribution across retailers

$680/ct

10th Percentile

$236

Median

$680

90th Percentile

$1,978

Score Distribution

3 diamonds scored across 2 quality tiers

Excellent

2 (66.7%)

Average

1 (33.3%)

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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

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G VVS1VVS1 inclusions are not visible without magnification

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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