How much does a 1.00 to 1.49ct J VS1 natural cushion diamond cost?

As of September 2026, 1.00 to 1.49ct J VS1 natural cushion diamonds typically cost £936 GBP to £2,690 GBP, with a median price of £1,468 GBP. There are currently 1,087 diamonds matching this specification available across retailers.

Where can I find the best price on a J VS1 cushion diamond?

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1.00 to 1.49ct J VS1 Natural Cushion

Quick answer

As of September 2026, there are 1,087 natural cushion diamonds with J colour and VS1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £936 GBP to £2,690 GBP, with a median of £1,468 GBP. At least 46 retailers stock this exact specification. Half of all listings fall between £1,094 GBP and £1,887 GBP per carat. The same specification in lab grown form lists at a median of about £976 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. Cushion natural stones in the index: 2,792 USD per carat, +1.1% 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

1,087

Lowest Price

£589 GBP

Highest Price

£6,721 GBP

Average Price

£1,680 GBP

Market Intelligence

Retailers Selling

Price Spread

57.1%

Price Range

Price per carat distribution across retailers

$1,871/ct

10th Percentile

$1,226

Median

$1,871

90th Percentile

$3,283

Score Distribution

1.1K diamonds scored across 4 quality tiers

Excellent

157 (14.4%)

Very Good

180 (16.6%)

Good

418 (38.5%)

Average

332 (30.5%)

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Consider Instead

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

Lab-Grown J VS1Same specifications, lab-grown origin

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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