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

As of October 2026, 1.00 to 1.49ct I SI1 lab grown asscher diamonds typically cost $5,591 SGD to $5,591 SGD, with a median price of $5,591 SGD. There are currently 0 diamonds matching this specification available across retailers.

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

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1.00 to 1.49ct I SI1 Lab Grown Asscher

Quick answer

As of October 2026, there are 0 lab grown asscher diamonds with I colour and SI1 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run $5,591 SGD to $5,591 SGD, with a median of $5,591 SGD. At least 4 retailers stock this exact specification. Half of all listings fall between $830 SGD and $4,706 SGD per carat. The same specification in natural form lists at a median of about $3,218 SGD per carat.

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

$5,591 SGD

Highest Price

$5,591 SGD

Average Price

$5,591 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

0.0%

Price Spread

285.4%

Price Range

Price per carat distribution across retailers

$1,059/ct

10th Percentile

$400

Median

$1,059

90th Percentile

$4,699

Score Distribution

1 diamonds scored across 1 quality tiers

Average

1 (100.0%)

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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