How much does a 1.50 to 1.99ct G VS1 lab grown round diamond cost?

As of October 2026, 1.50 to 1.99ct G VS1 lab grown round diamonds typically cost £162 GBP to £981 GBP, with a median price of £412 GBP. There are currently 2,783 diamonds matching this specification available across retailers.

Where can I find the best price on a G VS1 round diamond?

About 46% of these diamonds are available at multiple retailers, with an average price spread of 90%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct G VS1 Lab Grown Round

Quick answer

As of October 2026, there are 2,783 lab grown round diamonds with G colour and VS1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £162 GBP to £981 GBP, with a median of £412 GBP. At least 59 retailers stock this exact specification, and 46% of the stones appear at more than one of them, with an average price spread of 90%. Half of all listings fall between £187 GBP and £453 GBP per carat. The same specification in natural form lists at a median of about £6,081 GBP per carat. Over the last 30 days the median price moved +13.7% and the number of listings moved -3.0%.

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. 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

2,783

Lowest Price

£131 GBP

Highest Price

£2,344 GBP

Average Price

£518 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

45.9%

Price Spread

89.5%

30-Day Price Trend

+13.7%

30-Day Supply Change

-3.0%

Volatility (30d)

0.07

Price Range

Price per carat distribution across retailers

$395/ct

10th Percentile

$154

Median

$395

90th Percentile

$760

Score Distribution

6.0K diamonds scored across 4 quality tiers

Excellent

2,398 (40.2%)

Very Good

651 (10.9%)

Good

1,024 (17.2%)

Average

1,887 (31.7%)

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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