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

As of November 2026, 1.00 to 1.49ct G SI1 lab grown asscher diamonds typically cost $806 NZD to $1,087 NZD, with a median price of $844 NZD. There are currently 23 diamonds matching this specification available across retailers.

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

About 26% of these diamonds are available at multiple retailers, with an average price spread of 55%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct G SI1 Lab Grown Asscher

Quick answer

As of November 2026, there are 23 lab grown asscher diamonds with G colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $806 NZD to $1,087 NZD, with a median of $844 NZD. At least 24 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 55%. Half of all listings fall between $547 NZD and $976 NZD per carat. The same specification in natural form lists at a median of about $5,849 NZD per carat. Over the last 30 days the median price moved +9.8% and the number of listings moved +18.4%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Asscher lab grown stones in the index: 495 USD per carat, +1.5% 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: November 2026

Available

Lowest Price

$417 NZD

Highest Price

$2,213 NZD

Average Price

$907 NZD

Market Intelligence

Retailers Selling

Cross Retailer %

26.0%

Price Spread

54.7%

30-Day Price Trend

+9.8%

30-Day Supply Change

+18.4%

Volatility (30d)

0.05

Price Range

Price per carat distribution across retailers

$442/ct

10th Percentile

$225

Median

$442

90th Percentile

$908

Score Distribution

24 diamonds scored across 4 quality tiers

Excellent

2 (8.3%)

Very Good

6 (25.0%)

Good

15 (62.5%)

Average

1 (4.2%)

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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