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

As of October 2026, 0.75 to 0.99ct D SI1 lab grown asscher diamonds typically cost $276 AUD to $1,012 AUD, with a median price of $675 AUD. There are currently 11 diamonds matching this specification available across retailers.

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

About 32% of these diamonds are available at multiple retailers, with an average price spread of 70%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct D SI1 Lab Grown Asscher

Quick answer

As of October 2026, there are 11 lab grown asscher diamonds with D colour and SI1 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run $276 AUD to $1,012 AUD, with a median of $675 AUD. At least 25 retailers stock this exact specification, and 32% of the stones appear at more than one of them, with an average price spread of 70%. Half of all listings fall between $410 AUD and $855 AUD per carat. The same specification in natural form lists at a median of about $3,205 AUD per carat. Over the last 30 days the median price moved -3.7% and the number of listings moved +31.7%.

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

$205 AUD

Highest Price

$1,966 AUD

Average Price

$693 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

31.8%

Price Spread

69.8%

30-Day Price Trend

-3.7%

30-Day Supply Change

+31.7%

Volatility (30d)

0.04

Price Range

Price per carat distribution across retailers

$447/ct

10th Percentile

$171

Median

$447

90th Percentile

$999

Score Distribution

17 diamonds scored across 4 quality tiers

Excellent

4 (23.5%)

Very Good

3 (17.6%)

Good

6 (35.3%)

Average

4 (23.5%)

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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