How much does a 2.00 to 2.99ct J SI1 natural cushion diamond cost?

As of September 2026, 2.00 to 2.99ct J SI1 natural cushion diamonds typically cost HK$44,394 HKD to HK$139,449 HKD, with a median price of HK$78,227 HKD. There are currently 614 diamonds matching this specification available across retailers.

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

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2.00 to 2.99ct J SI1 Natural Cushion

Quick answer

As of September 2026, there are 614 natural cushion diamonds with J colour and SI1 clarity in the 2.00 to 2.99ct range available across retailers worldwide. Prices typically run HK$44,394 HKD to HK$139,449 HKD, with a median of HK$78,227 HKD. At least 46 retailers stock this exact specification. Half of all listings fall between HK$24,031 HKD and HK$42,648 HKD per carat. The same specification in lab grown form lists at a median of about HK$13,437 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

614

Lowest Price

HK$26,699 HKD

Highest Price

HK$322,190 HKD

Average Price

HK$86,716 HKD

Market Intelligence

Retailers Selling

Price Spread

57.8%

Price Range

Price per carat distribution across retailers

$4,109/ct

10th Percentile

$2,403

Median

$4,109

90th Percentile

$6,475

Score Distribution

614 diamonds scored across 4 quality tiers

Excellent

51 (8.3%)

Very Good

134 (21.8%)

Good

218 (35.5%)

Average

211 (34.4%)

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Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

J SI2SI2 inclusions are not visible without magnification

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Lab-Grown J SI1Same specifications, lab-grown origin

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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