How much does a 0.75 to 0.99ct G VVS1 lab grown cushion diamond cost?

As of October 2026, 0.75 to 0.99ct G VVS1 lab grown cushion diamonds typically cost £228 GBP to £649 GBP, with a median price of £387 GBP. There are currently 3 diamonds matching this specification available across retailers.

Where can I find the best price on a G VVS1 cushion diamond?

About 39% of these diamonds are available at multiple retailers, with an average price spread of 85%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct G VVS1 Lab Grown Cushion

Quick answer

As of October 2026, there are 3 lab grown cushion diamonds with G colour and VVS1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run £228 GBP to £649 GBP, with a median of £387 GBP. At least 40 retailers stock this exact specification, and 39% of the stones appear at more than one of them, with an average price spread of 85%. Half of all listings fall between £316 GBP and £688 GBP per carat. The same specification in natural form lists at a median of about £1,564 GBP per carat. Over the last 30 days the median price moved +2.5% and the number of listings moved +1.5%.

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 lab grown stones in the index: 516 USD per carat, +6.9% 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

£135 GBP

Highest Price

£979 GBP

Average Price

£397 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

38.6%

Price Spread

84.8%

30-Day Price Trend

+2.5%

30-Day Supply Change

+1.5%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$584/ct

10th Percentile

$305

Median

$584

90th Percentile

$1,154

Score Distribution

11 diamonds scored across 4 quality tiers

Excellent

2 (18.2%)

Very Good

1 (9.1%)

Good

2 (18.2%)

Average

6 (54.5%)

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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