How much does a 1.00 to 1.49ct F SI1 natural emerald diamond cost?

As of October 2026, 1.00 to 1.49ct F SI1 natural emerald diamonds typically cost £1,335 GBP to £4,342 GBP, with a median price of £2,184 GBP. There are currently 267 diamonds matching this specification available across retailers.

Where can I find the best price on a F SI1 emerald diamond?

About 31% of these diamonds are available at multiple retailers, with an average price spread of 56%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct F SI1 Natural Emerald

Quick answer

As of October 2026, there are 267 natural emerald diamonds with F colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run £1,335 GBP to £4,342 GBP, with a median of £2,184 GBP. At least 61 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 56%. Half of all listings fall between £1,551 GBP and £2,612 GBP per carat. The same specification in lab grown form lists at a median of about £342 GBP per carat. Over the last 30 days the median price moved -1.4% and the number of listings moved +8.3%.

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

267

Lowest Price

£974 GBP

Highest Price

£6,741 GBP

Average Price

£2,542 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

30.8%

Price Spread

55.9%

30-Day Price Trend

-1.4%

30-Day Supply Change

+8.3%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$2,545/ct

10th Percentile

$1,791

Median

$2,545

90th Percentile

$4,690

Score Distribution

747 diamonds scored across 4 quality tiers

Excellent

101 (13.5%)

Very Good

176 (23.6%)

Good

120 (16.1%)

Average

350 (46.9%)

Find Your Diamond

Search 267 F SI1 emerald diamonds and compare prices.

Search Diamonds

Consider Instead

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

F SI2SI2 inclusions are not visible without magnification

Save 21%

Lab-Grown F SI1Same specifications, lab-grown origin

Save 82%

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