How much does a 1.00 to 1.49ct D SI1 lab grown asscher diamond cost?

As of October 2026, 1.00 to 1.49ct D SI1 lab grown asscher diamonds typically cost $219 AUD to $879 AUD, with a median price of $459 AUD. There are currently 74 diamonds matching this specification available across retailers.

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

About 38% of these diamonds are available at multiple retailers, with an average price spread of 75%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct D SI1 Lab Grown Asscher

Quick answer

As of October 2026, there are 74 lab grown asscher diamonds with D colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $219 AUD to $879 AUD, with a median of $459 AUD. At least 28 retailers stock this exact specification, and 38% of the stones appear at more than one of them, with an average price spread of 75%. Half of all listings fall between $384 AUD and $828 AUD per carat. The same specification in natural form lists at a median of about $5,565 AUD per carat. Over the last 30 days the median price moved -0.3% and the number of listings moved +20.0%.

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

$184 AUD

Highest Price

$2,462 AUD

Average Price

$517 AUD

Market Intelligence

Retailers Selling

Cross Retailer %

37.7%

Price Spread

74.9%

30-Day Price Trend

-0.3%

30-Day Supply Change

+20.0%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$416/ct

10th Percentile

$174

Median

$416

90th Percentile

$848

Score Distribution

135 diamonds scored across 4 quality tiers

Excellent

51 (37.8%)

Very Good

17 (12.6%)

Good

52 (38.5%)

Average

15 (11.1%)

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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