How much does a 5.00ct+ I SI2 natural asscher diamond cost?

As of September 2026, 5.00ct+ I SI2 natural asscher diamonds typically cost $98,715 AUD to $98,715 AUD, with a median price of $98,715 AUD. There are currently 1 diamonds matching this specification available across retailers.

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

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5.00ct+ I SI2 Natural Asscher

Quick answer

As of September 2026, there are 1 natural asscher diamonds with I colour and SI2 clarity in the 5.00ct+ range available across retailers worldwide. Prices typically run $98,715 AUD to $98,715 AUD, with a median of $98,715 AUD. At least 7 retailers stock this exact specification. Half of all listings fall between $22,378 AUD and $30,545 AUD per carat.

Three of the best scored stones at this specification right now:

5.51ct Asscher I SI2, GIA, score 82 of 100, from $98,715 AUD

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

$98,715 AUD

Highest Price

$130,256 AUD

Average Price

$98,715 AUD

Market Intelligence

Retailers Selling

Price Spread

33.9%

Price Range

Price per carat distribution across retailers

$17,260/ct

10th Percentile

$14,718

Median

$17,260

90th Percentile

$22,801

Score Distribution

1 diamonds scored across 1 quality tiers

Excellent

1 (100.0%)

Find Your Diamond

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Consider Instead

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

J SI2J colour is visually identical to I to the naked eye

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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