How much does a 2.00 to 2.99ct J I1 natural round diamond cost?

As of October 2026, 2.00 to 2.99ct J I1 natural round diamonds typically cost £4,420 GBP to £15,177 GBP, with a median price of £8,118 GBP. There are currently 198 diamonds matching this specification available across retailers.

Where can I find the best price on a J I1 round diamond?

About 33% of these diamonds are available at multiple retailers, with an average price spread of 60%. A comparison tool like Carat Hunter lets you see all the prices side by side.

2.00 to 2.99ct J I1 Natural Round

Quick answer

As of October 2026, there are 198 natural round diamonds with J colour and I1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run £4,420 GBP to £15,177 GBP, with a median of £8,118 GBP. At least 29 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 60%. Half of all listings fall between £2,084 GBP and £3,938 GBP per carat. The same specification in lab grown form lists at a median of about £716 GBP per carat. Over the last 30 days the median price moved -4.4% and the number of listings moved +16.8%.

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 natural stones in the index: 2,248 USD per carat, +7.6% 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

198

Lowest Price

£1,480 GBP

Highest Price

£18,697 GBP

Average Price

£8,862 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

33.3%

Price Spread

59.8%

30-Day Price Trend

-4.4%

30-Day Supply Change

+16.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,152/ct

10th Percentile

$1,879

Median

$4,152

90th Percentile

$6,485

Score Distribution

646 diamonds scored across 4 quality tiers

Excellent

27 (4.2%)

Very Good

144 (22.3%)

Good

95 (14.7%)

Average

380 (58.8%)

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Consider Instead

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

Lab-Grown J I1Same specifications, lab-grown origin

Save 77%

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