How much does a 1.50 to 1.99ct E I1 natural oval diamond cost?

As of October 2026, 1.50 to 1.99ct E I1 natural oval diamonds typically cost £3,248 GBP to £9,629 GBP, with a median price of £5,828 GBP. There are currently 43 diamonds matching this specification available across retailers.

Where can I find the best price on a E I1 oval diamond?

About 17% of these diamonds are available at multiple retailers, with an average price spread of 57%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct E I1 Natural Oval

Quick answer

As of October 2026, there are 43 natural oval diamonds with E colour and I1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £3,248 GBP to £9,629 GBP, with a median of £5,828 GBP. At least 28 retailers stock this exact specification, and 17% of the stones appear at more than one of them, with an average price spread of 57%. Half of all listings fall between £2,508 GBP and £4,360 GBP per carat. Over the last 30 days the median price moved -3.5% and the number of listings moved +4.9%.

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

Lowest Price

£2,121 GBP

Highest Price

£12,138 GBP

Average Price

£6,190 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

16.7%

Price Spread

56.8%

30-Day Price Trend

-3.5%

30-Day Supply Change

+4.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$4,343/ct

10th Percentile

$2,674

Median

$4,343

90th Percentile

$6,865

Score Distribution

235 diamonds scored across 4 quality tiers

Excellent

29 (12.3%)

Very Good

28 (11.9%)

Good

24 (10.2%)

Average

154 (65.5%)

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Consider Instead

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

F I1F colour is visually identical to E 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