How much does a 1.50 to 1.99ct I I1 natural emerald diamond cost?

As of October 2026, 1.50 to 1.99ct I I1 natural emerald diamonds typically cost £1,499 GBP to £2,930 GBP, with a median price of £1,958 GBP. There are currently 8 diamonds matching this specification available across retailers.

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

About 50% of these diamonds are available at multiple retailers, with an average price spread of 68%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.50 to 1.99ct I I1 Natural Emerald

Quick answer

As of October 2026, there are 8 natural emerald diamonds with I colour and I1 clarity in the 1.50 to 1.99ct range available across retailers worldwide. Prices typically run £1,499 GBP to £2,930 GBP, with a median of £1,958 GBP. At least 19 retailers stock this exact specification, and 50% of the stones appear at more than one of them, with an average price spread of 68%. Half of all listings fall between £1,379 GBP and £2,801 GBP per carat. The same specification in lab grown form lists at a median of about £282 GBP per carat. Over the last 30 days the median price moved -2.9% and the number of listings moved -6.8%.

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. Emerald natural stones in the index: 2,278 USD per carat, +6.2% 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

£1,310 GBP

Highest Price

£5,785 GBP

Average Price

£2,198 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

50.0%

Price Spread

67.6%

30-Day Price Trend

-2.9%

30-Day Supply Change

-6.8%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$2,802/ct

10th Percentile

$1,488

Median

$2,802

90th Percentile

$4,205

Score Distribution

18 diamonds scored across 4 quality tiers

Excellent

2 (11.1%)

Very Good

9 (50.0%)

Good

3 (16.7%)

Average

4 (22.2%)

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Consider Instead

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

J I1J colour is visually identical to I to the naked eye

Save 24%

Lab-Grown I I1Same 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