How much does a 1.00 to 1.49ct J SI2 natural asscher diamond cost?

As of October 2026, 1.00 to 1.49ct J SI2 natural asscher diamonds typically cost HK$12,233 HKD to HK$28,239 HKD, with a median price of HK$18,514 HKD. There are currently 29 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI2 asscher diamond?

About 31% of these diamonds are available at multiple retailers, with an average price spread of 44%. A comparison tool like Carat Hunter lets you see all the prices side by side.

1.00 to 1.49ct J SI2 Natural Asscher

Quick answer

As of October 2026, there are 29 natural asscher diamonds with J colour and SI2 clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$12,233 HKD to HK$28,239 HKD, with a median of HK$18,514 HKD. At least 37 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 44%. Half of all listings fall between HK$11,882 HKD and HK$18,111 HKD per carat. Over the last 30 days the median price moved -3.0% and the number of listings moved +12.9%.

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 natural stones in the index: 2,504 USD per carat, -3.3% 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

HK$6,385 HKD

Highest Price

HK$35,256 HKD

Average Price

HK$19,639 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

31.4%

Price Spread

44.4%

30-Day Price Trend

-3.0%

30-Day Supply Change

+12.9%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,787/ct

10th Percentile

$1,108

Median

$1,787

90th Percentile

$3,011

Score Distribution

141 diamonds scored across 4 quality tiers

Excellent

9 (6.4%)

Very Good

12 (8.5%)

Good

9 (6.4%)

Average

111 (78.7%)

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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