How much does a 0.75 to 0.99ct H SI1 lab grown asscher diamond cost?

As of October 2026, 0.75 to 0.99ct H SI1 lab grown asscher diamonds typically cost $543 AUD to $4,791 AUD, with a median price of $2,194 AUD. There are currently 3 diamonds matching this specification available across retailers.

Where can I find the best price on a H SI1 asscher diamond?

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0.75 to 0.99ct H SI1 Lab Grown Asscher

Quick answer

As of October 2026, there are 3 lab grown asscher diamonds with H colour and SI1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $543 AUD to $4,791 AUD, with a median of $2,194 AUD. The same specification in natural form lists at a median of about $2,463 AUD per carat.

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 lab grown stones in the index: 470 USD per carat, -4.3% 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

$535 AUD

Highest Price

$5,204 AUD

Average Price

$2,532 AUD

Score Distribution

4 diamonds scored across 3 quality tiers

Very Good

1 (25.0%)

Good

2 (50.0%)

Average

1 (25.0%)

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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