How much does a 1.00 to 1.49ct I VS2 lab grown round diamond cost?

As of September 2026, 1.00 to 1.49ct I VS2 lab grown round diamonds typically cost £511 GBP to £2,279 GBP, with a median price of £1,054 GBP. There are currently 682 diamonds matching this specification available across retailers.

Where can I find the best price on a I VS2 round diamond?

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1.00 to 1.49ct I VS2 Lab Grown Round

Quick answer

As of September 2026, there are 682 lab grown round diamonds with I colour and VS2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £511 GBP to £2,279 GBP, with a median of £1,054 GBP. At least 38 retailers stock this exact specification. Half of all listings fall between £905 GBP and £4,065 GBP per carat. The same specification in natural form lists at a median of about £2,912 GBP per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Round lab grown stones in the index: 438 USD per carat, -14.1% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

682

Lowest Price

£91 GBP

Highest Price

£9,003 GBP

Average Price

£1,349 GBP

Market Intelligence

Retailers Selling

Price Spread

173.2%

Price Range

Price per carat distribution across retailers

$2,318/ct

10th Percentile

$451

Median

$2,318

90th Percentile

$6,248

Score Distribution

682 diamonds scored across 4 quality tiers

Excellent

49 (7.2%)

Very Good

202 (29.6%)

Good

316 (46.3%)

Average

115 (16.9%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

J VS2J colour is visually identical to I to the naked eye

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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