How much does a 0.50 to 0.74ct K I1 natural round diamond cost?

As of November 6, 2026, 0.50 to 0.74ct K I1 natural round diamonds typically cost HK$2,157 HKD to HK$8,509 HKD, with a median price of HK$5,071 HKD. There are currently 457 diamonds matching this specification available across retailers.

Where can I find the best price on a K I1 round diamond?

About 36% of these diamonds are available at multiple retailers, with an average price spread of 79%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct K I1 Natural Round

Quick answer

As of November 6, 2026, there are 457 natural round diamonds with K colour and I1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run HK$2,157 HKD to HK$8,509 HKD, with a median of HK$5,071 HKD. Half of all listings fall between HK$5,417 HKD and HK$11,818 HKD per carat. The same specification in lab grown form lists at a median of about HK$3,537 HKD per carat. Over the last 30 days the median price moved -1.2% and the number of listings moved -11.7%.

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

Caratlytics Diamond Price Index, October 2026: natural diamonds at 2,202 USD per carat and lab-grown at 462 USD per carat, a natural to lab ratio of 4.8 to 1. Round natural stones in the index: 2,124 USD per carat, -6.9% month on month. See the full index release

Figures come from current listings across more than 125 retailers. The index is a monthly release.

Last updated: November 6, 2026

Available

457

Lowest Price

HK$888 HKD

Highest Price

HK$19,189 HKD

Average Price

HK$5,215 HKD

Market Intelligence

Cross Retailer %

35.9%

Price Spread

78.7%

30-Day Price Trend

-1.2%

30-Day Supply Change

-11.7%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,037/ct

10th Percentile

$502

Median

$1,037

90th Percentile

$1,706

Score Distribution

457 diamonds scored across 4 quality tiers

Excellent

27 (5.9%)

Very Good

136 (29.8%)

Good

61 (13.3%)

Average

233 (51.0%)

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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