How much does a 5.00ct+ D SI1 natural emerald diamond cost?

As of September 2026, 5.00ct+ D SI1 natural emerald diamonds typically cost £57,487 GBP to £133,016 GBP, with a median price of £86,049 GBP. There are currently 16 diamonds matching this specification available across retailers.

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

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5.00ct+ D SI1 Natural Emerald

Quick answer

As of September 2026, there are 16 natural emerald diamonds with D colour and SI1 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run £57,487 GBP to £133,016 GBP, with a median of £86,049 GBP. At least 28 retailers stock this exact specification. Half of all listings fall between £17,338 GBP and £23,134 GBP per carat. The same specification in lab grown form lists at a median of about £229 GBP per carat.

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

£38,045 GBP

Highest Price

£189,007 GBP

Average Price

£90,283 GBP

Market Intelligence

Retailers Selling

Price Spread

28.7%

Price Range

Price per carat distribution across retailers

$27,269/ct

10th Percentile

$17,932

Median

$27,269

90th Percentile

$34,844

Score Distribution

16 diamonds scored across 4 quality tiers

Excellent

1 (6.3%)

Very Good

6 (37.5%)

Good

7 (43.8%)

Average

2 (12.5%)

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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

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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