How much does a 5.00ct+ H SI1 natural cushion diamond cost?

As of July 2026, 5.00ct+ H SI1 natural cushion diamonds typically cost HK$399,070 HKD to HK$1,835,752 HKD, with a median price of HK$751,875 HKD. There are currently 55 diamonds matching this specification available across retailers.

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

Compare prices across retailers on Carat Hunter to see all your options.

5.00ct+ H SI1 Natural Cushion

Last updated: July 2026

Available

Lowest Price

HK$288,071 HKD

Highest Price

HK$3,712,922 HKD

Average Price

HK$927,152 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

N/A

Price Spread

37.4%

30-Day Price Trend

N/A

30-Day Supply Change

N/A

Volatility (30d)

N/A

Price Range

Price per carat distribution across retailers

$17,606/ct

10th Percentile

$11,120

Median

$17,606

90th Percentile

$23,191

Score Distribution

55 diamonds scored across 4 quality tiers

Excellent

1 (1.8%)

Very Good

18 (32.7%)

Good

23 (41.8%)

Average

13 (23.6%)

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Consider Instead

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

Lab-Grown H 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