How much does a 0.50 to 0.74ct G IF lab grown princess diamond cost?

As of October 2026, 0.50 to 0.74ct G IF lab grown princess diamonds typically cost £660 GBP to £660 GBP, with a median price of £660 GBP. There are currently 1 diamonds matching this specification available across retailers.

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

About 50% of these diamonds are available at multiple retailers, with an average price spread of 89%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct G IF Lab Grown Princess

Quick answer

As of October 2026, there are 1 lab grown princess diamonds with G colour and IF clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run £660 GBP to £660 GBP, with a median of £660 GBP. At least 30 retailers stock this exact specification, and 50% of the stones appear at more than one of them, with an average price spread of 89%. Half of all listings fall between £310 GBP and £823 GBP per carat. The same specification in natural form lists at a median of about £1,427 GBP per carat. Over the last 30 days the median price moved -15.6% and the number of listings moved +34.1%.

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

0.73ct Princess G IF, IGI, grade B, from £660 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. Princess lab grown stones in the index: 461 USD per carat, -4.8% 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

£660 GBP

Highest Price

£1,145 GBP

Average Price

£660 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

50.0%

Price Spread

89.3%

30-Day Price Trend

-15.6%

30-Day Supply Change

+34.1%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$765/ct

10th Percentile

$311

Median

$765

90th Percentile

$1,618

Score Distribution

1 diamonds scored across 1 quality tiers

Good

1 (100.0%)

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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