How much does a 1.00 to 1.49ct K VS1 natural round diamond cost?

As of November 6, 2026, 1.00 to 1.49ct K VS1 natural round diamonds typically cost £1,232 GBP to £3,340 GBP, with a median price of £1,839 GBP. There are currently 1,805 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 51%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct K VS1 Natural Round

Quick answer

As of November 6, 2026, there are 1,805 natural round diamonds with K colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £1,232 GBP to £3,340 GBP, with a median of £1,839 GBP. Half of all listings fall between £1,389 GBP and £2,239 GBP per carat. The same specification in lab grown form lists at a median of about £667 GBP per carat. Over the last 30 days the median price moved -0.7% and the number of listings moved +5.8%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Round natural stones in the index: 2,124 USD per carat, -6.9% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

1,805

Lowest Price

£701 GBP

Highest Price

£7,253 GBP

Average Price

£2,107 GBP

Market Intelligence

Cross Retailer %

38.0%

Price Spread

50.7%

30-Day Price Trend

-0.7%

30-Day Supply Change

+5.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,254/ct

10th Percentile

$1,544

Median

$2,254

90th Percentile

$4,036

Score Distribution

1.8K diamonds scored across 4 quality tiers

Excellent

488 (27.0%)

Very Good

431 (23.9%)

Good

250 (13.9%)

Average

636 (35.2%)

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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