How much does a 0.50 to 0.74ct D SI1 natural emerald diamond cost?

As of October 2026, 0.50 to 0.74ct D SI1 natural emerald diamonds typically cost £420 GBP to £1,104 GBP, with a median price of £653 GBP. There are currently 592 diamonds matching this specification available across retailers.

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

About 31% of these diamonds are available at multiple retailers, with an average price spread of 38%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct D SI1 Natural Emerald

Quick answer

As of October 2026, there are 592 natural emerald diamonds with D colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run £420 GBP to £1,104 GBP, with a median of £653 GBP. At least 59 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 38%. Half of all listings fall between £909 GBP and £1,314 GBP per carat. The same specification in lab grown form lists at a median of about £380 GBP per carat. Over the last 30 days the median price moved -0.0% and the number of listings moved +7.5%.

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

592

Lowest Price

£297 GBP

Highest Price

£1,898 GBP

Average Price

£727 GBP

Market Intelligence

Retailers Selling

Cross Retailer %

31.4%

Price Spread

37.7%

30-Day Price Trend

-0.0%

30-Day Supply Change

+7.5%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,431/ct

10th Percentile

$1,057

Median

$1,431

90th Percentile

$2,414

Score Distribution

1.5K diamonds scored across 4 quality tiers

Excellent

189 (13.0%)

Very Good

371 (25.4%)

Good

274 (18.8%)

Average

624 (42.8%)

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Consider Instead

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

D SI2SI2 inclusions are not visible without magnification

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Lab-Grown D SI1Same specifications, lab-grown origin

Save 65%

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