How much does a 1.00 to 1.49ct J SI2 natural emerald diamond cost?

As of October 2026, 1.00 to 1.49ct J SI2 natural emerald diamonds typically cost £860 GBP to £2,762 GBP, with a median price of £1,427 GBP. There are currently 113 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI2 emerald diamond?

About 36% of these diamonds are available at multiple retailers, with an average price spread of 49%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J SI2 Natural Emerald

Quick answer

As of October 2026, there are 113 natural emerald diamonds with J colour and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £860 GBP to £2,762 GBP, with a median of £1,427 GBP. At least 49 retailers stock this exact specification, and 36% of the stones appear at more than one of them, with an average price spread of 49%. Half of all listings fall between £893 GBP and £1,425 GBP per carat. The same specification in lab grown form lists at a median of about £665 GBP per carat. Over the last 30 days the median price moved -0.3% and the number of listings moved +7.8%.

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

113

Lowest Price

£561 GBP

Highest Price

£4,444 GBP

Average Price

£1,598 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

36.1%

Price Spread

48.9%

30-Day Price Trend

-0.3%

30-Day Supply Change

+7.8%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$1,457/ct

10th Percentile

$1,005

Median

$1,457

90th Percentile

$2,660

Score Distribution

339 diamonds scored across 4 quality tiers

Excellent

34 (10.0%)

Very Good

57 (16.8%)

Good

50 (14.7%)

Average

198 (58.4%)

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Consider Instead

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

Lab-Grown J SI2Same specifications, lab-grown origin

Save 39%

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