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

As of October 2026, 3.00 to 4.99ct J SI2 natural asscher diamonds typically cost £11,332 GBP to £28,306 GBP, with a median price of £18,803 GBP. There are currently 7 diamonds matching this specification available across retailers.

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

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3.00 to 4.99ct J SI2 Natural Asscher

Quick answer

As of October 2026, there are 7 natural asscher diamonds with J colour and SI2 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run £11,332 GBP to £28,306 GBP, with a median of £18,803 GBP.

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. Asscher natural stones in the index: 2,504 USD per carat, -3.3% 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

Lowest Price

£8,936 GBP

Highest Price

£33,956 GBP

Average Price

£18,820 GBP

Score Distribution

16 diamonds scored across 4 quality tiers

Excellent

3 (18.8%)

Very Good

5 (31.3%)

Good

5 (31.3%)

Average

3 (18.8%)

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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