How much does a 1.50 to 1.99ct I VVS2 lab grown round diamond cost?

As of October 2026, 1.50 to 1.99ct I VVS2 lab grown round diamonds typically cost £278 GBP to £1,194 GBP, with a median price of £508 GBP. There are currently 221 diamonds matching this specification available across retailers.

Where can I find the best price on a I VVS2 round diamond?

About 37% of these diamonds are available at multiple retailers, with an average price spread of 68%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I VVS2 Lab Grown Round

Quick answer

As of October 2026, there are 221 lab grown round diamonds with I colour and VVS2 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £278 GBP to £1,194 GBP, with a median of £508 GBP. At least 41 retailers stock this exact specification, and 37% of the stones appear at more than one of them, with an average price spread of 68%. Half of all listings fall between £205 GBP and £420 GBP per carat. The same specification in natural form lists at a median of about £4,483 GBP per carat. Over the last 30 days the median price moved +9.5% and the number of listings moved +6.0%.

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

221

Lowest Price

£134 GBP

Highest Price

£1,990 GBP

Average Price

£557 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

36.9%

Price Spread

68.3%

30-Day Price Trend

+9.5%

30-Day Supply Change

+6.0%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$419/ct

10th Percentile

$161

Median

$419

90th Percentile

$891

Score Distribution

429 diamonds scored across 4 quality tiers

Excellent

144 (33.6%)

Very Good

38 (8.9%)

Good

139 (32.4%)

Average

108 (25.2%)

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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