How much does a 0.50 to 0.74ct G I1 natural cushion diamond cost?

As of October 2026, 0.50 to 0.74ct G I1 natural cushion diamonds typically cost HK$3,689 HKD to HK$8,002 HKD, with a median price of HK$4,864 HKD. There are currently 25 diamonds matching this specification available across retailers.

Where can I find the best price on a G I1 cushion diamond?

About 8% of these diamonds are available at multiple retailers, with an average price spread of 29%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct G I1 Natural Cushion

Quick answer

As of October 2026, there are 25 natural cushion diamonds with G colour and I1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run HK$3,689 HKD to HK$8,002 HKD, with a median of HK$4,864 HKD. At least 15 retailers stock this exact specification, and 8% of the stones appear at more than one of them, with an average price spread of 29%. Half of all listings fall between HK$7,058 HKD and HK$9,249 HKD per carat. Over the last 30 days the median price moved -1.0% and the number of listings moved -6.3%.

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. Cushion natural stones in the index: 2,948 USD per carat, +1.7% 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$3,044 HKD

Highest Price

HK$12,117 HKD

Average Price

HK$5,353 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

8.5%

Price Spread

28.6%

30-Day Price Trend

-1.0%

30-Day Supply Change

-6.3%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$977/ct

10th Percentile

$840

Median

$977

90th Percentile

$1,500

Score Distribution

83 diamonds scored across 3 quality tiers

Very Good

1 (1.2%)

Good

14 (16.9%)

Average

68 (81.9%)

Find Your Diamond

Search 25 G I1 cushion diamonds and compare prices.

Search Diamonds

Consider Instead

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

H I1H colour is visually identical to G to the naked eye

Save 7%

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