How much does a 1.00 to 1.49ct I I1 natural emerald diamond cost?

As of September 2026, 1.00 to 1.49ct I I1 natural emerald diamonds typically cost £761 GBP to £2,263 GBP, with a median price of £1,106 GBP. There are currently 52 diamonds matching this specification available across retailers.

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

About 61% of these diamonds are available at multiple retailers, with an average price spread of 48%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct I I1 Natural Emerald

Quick answer

As of September 2026, there are 52 natural emerald diamonds with I colour and I1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £761 GBP to £2,263 GBP, with a median of £1,106 GBP. At least 21 retailers stock this exact specification, and 61% of the stones appear at more than one of them, with an average price spread of 48%. Half of all listings fall between £885 GBP and £1,436 GBP per carat. The same specification in lab grown form lists at a median of about £1,470 GBP per carat. Over the last 30 days the median price moved -5.4% and the number of listings moved -2.9%.

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. Emerald natural stones in the index: 2,166 USD per carat, -6.6% 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

Lowest Price

£590 GBP

Highest Price

£3,519 GBP

Average Price

£1,328 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

60.6%

Price Spread

48.3%

30-Day Price Trend

-5.4%

30-Day Supply Change

-2.9%

Volatility (30d)

0.03

Price Range

Price per carat distribution across retailers

$1,539/ct

10th Percentile

$975

Median

$1,539

90th Percentile

$2,557

Score Distribution

52 diamonds scored across 3 quality tiers

Very Good

20 (38.5%)

Good

14 (26.9%)

Average

18 (34.6%)

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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