How much does a 2.00 to 2.99ct J SI1 natural oval diamond cost?

As of October 2026, 2.00 to 2.99ct J SI1 natural oval diamonds typically cost £5,429 GBP to £16,311 GBP, with a median price of £9,717 GBP. There are currently 269 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI1 oval diamond?

About 38% of these diamonds are available at multiple retailers, with an average price spread of 52%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J SI1 Natural Oval

Quick answer

As of October 2026, there are 269 natural oval diamonds with J colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £5,429 GBP to £16,311 GBP, with a median of £9,717 GBP. At least 54 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 52%. Half of all listings fall between £2,690 GBP and £4,550 GBP per carat. The same specification in lab grown form lists at a median of about £1,016 GBP per carat. Over the last 30 days the median price moved -1.6% and the number of listings moved +7.6%.

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. Oval natural stones in the index: 2,655 USD per carat, +10.2% 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

269

Lowest Price

£3,141 GBP

Highest Price

£29,099 GBP

Average Price

£10,513 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

38.5%

Price Spread

52.3%

30-Day Price Trend

-1.6%

30-Day Supply Change

+7.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,740/ct

10th Percentile

$2,707

Median

$4,740

90th Percentile

$7,386

Score Distribution

797 diamonds scored across 4 quality tiers

Excellent

60 (7.5%)

Very Good

158 (19.8%)

Good

146 (18.3%)

Average

433 (54.3%)

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Consider Instead

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

J SI2SI2 inclusions are not visible without magnification

Save 11%

Lab-Grown J SI1Same specifications, lab-grown origin

Save 71%

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