How much does a 1.00 to 1.49ct J IF natural cushion diamond cost?

As of September 2026, 1.00 to 1.49ct J IF natural cushion diamonds typically cost HK$10,862 HKD to HK$30,375 HKD, with a median price of HK$15,350 HKD. There are currently 118 diamonds matching this specification available across retailers.

Where can I find the best price on a J IF cushion diamond?

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1.00 to 1.49ct J IF Natural Cushion

Quick answer

As of September 2026, there are 118 natural cushion diamonds with J colour and IF clarity in the 1.00 to 1.49ct range available across retailers worldwide. Prices typically run HK$10,862 HKD to HK$30,375 HKD, with a median of HK$15,350 HKD. At least 36 retailers stock this exact specification. Half of all listings fall between HK$12,061 HKD and HK$20,532 HKD per carat.

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

Caratlytics Diamond Price Index, August 2026: natural diamonds at 2,184 USD per carat and lab-grown at 464 USD per carat, a natural to lab ratio of 4.7 to 1. Cushion natural stones in the index: 2,792 USD per carat, +1.1% month on month. See the full index release

Figures come from live listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: September 2026

Available

118

Lowest Price

HK$9,055 HKD

Highest Price

HK$52,404 HKD

Average Price

HK$18,408 HKD

Market Intelligence

Retailers Selling

Price Spread

57.7%

Price Range

Price per carat distribution across retailers

$1,871/ct

10th Percentile

$1,289

Median

$1,871

90th Percentile

$3,350

Score Distribution

118 diamonds scored across 4 quality tiers

Excellent

22 (18.6%)

Very Good

30 (25.4%)

Good

33 (28.0%)

Average

33 (28.0%)

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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