How much does a 0.50 to 0.74ct D SI1 natural oval diamond cost?

As of October 2026, 0.50 to 0.74ct D SI1 natural oval diamonds typically cost HK$4,720 HKD to HK$15,242 HKD, with a median price of HK$8,003 HKD. There are currently 1,687 diamonds matching this specification available across retailers.

Where can I find the best price on a D SI1 oval diamond?

About 26% of these diamonds are available at multiple retailers, with an average price spread of 48%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct D SI1 Natural Oval

Quick answer

As of October 2026, there are 1,687 natural oval diamonds with D colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run HK$4,720 HKD to HK$15,242 HKD, with a median of HK$8,003 HKD. At least 61 retailers stock this exact specification, and 26% of the stones appear at more than one of them, with an average price spread of 48%. Half of all listings fall between HK$10,996 HKD and HK$17,374 HKD per carat. The same specification in lab grown form lists at a median of about HK$5,188 HKD per carat. Over the last 30 days the median price moved -3.9% and the number of listings moved +4.2%.

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. Oval natural stones in the index: 2,655 USD per carat, +10.2% 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

1,687

Lowest Price

HK$3,246 HKD

Highest Price

HK$26,965 HKD

Average Price

HK$9,290 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

26.1%

Price Spread

47.8%

30-Day Price Trend

-3.9%

30-Day Supply Change

+4.2%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$1,700/ct

10th Percentile

$1,210

Median

$1,700

90th Percentile

$3,085

Score Distribution

4.0K diamonds scored across 4 quality tiers

Excellent

539 (13.4%)

Very Good

1,010 (25.1%)

Good

990 (24.6%)

Average

1,488 (37.0%)

Find Your Diamond

Search 1,687 D SI1 oval diamonds and compare prices.

Search Diamonds

Consider Instead

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

D SI2SI2 inclusions are not visible without magnification

Save 9%

Lab-Grown D SI1Same specifications, lab-grown origin

Save 61%

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