How much does a 3.00 to 4.99ct G SI2 natural asscher diamond cost?

As of September 2026, 3.00 to 4.99ct G SI2 natural asscher diamonds typically cost £17,501 GBP to £28,365 GBP, with a median price of £20,457 GBP. There are currently 12 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI2 asscher diamond?

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3.00 to 4.99ct G SI2 Natural Asscher

Quick answer

As of September 2026, there are 12 natural asscher diamonds with G colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £17,501 GBP to £28,365 GBP, with a median of £20,457 GBP. At least 16 retailers stock this exact specification. Half of all listings fall between £4,215 GBP and £5,959 GBP per carat. The same specification in lab grown form lists at a median of about £9,584 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. Asscher natural stones in the index: 2,601 USD per carat, +11.1% 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

£12,966 GBP

Highest Price

£42,232 GBP

Average Price

£21,515 GBP

Market Intelligence

Retailers Selling

Price Spread

35.9%

Price Range

Price per carat distribution across retailers

$6,543/ct

10th Percentile

$5,380

Median

$6,543

90th Percentile

$9,012

Score Distribution

12 diamonds scored across 3 quality tiers

Excellent

7 (58.3%)

Very Good

3 (25.0%)

Good

2 (16.7%)

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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