How much does a 0.75 to 0.99ct J SI2 natural oval diamond cost?

As of October 2026, 0.75 to 0.99ct J SI2 natural oval diamonds typically cost HK$6,124 HKD to HK$16,615 HKD, with a median price of HK$9,788 HKD. There are currently 141 diamonds matching this specification available across retailers.

Where can I find the best price on a J SI2 oval diamond?

About 33% of these diamonds are available at multiple retailers, with an average price spread of 65%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.75 to 0.99ct J SI2 Natural Oval

Quick answer

As of October 2026, there are 141 natural oval diamonds with J colour and SI2 clarity in the 0.75 to 0.99ct range available across retailers worldwide. Prices typically run HK$6,124 HKD to HK$16,615 HKD, with a median of HK$9,788 HKD. At least 49 retailers stock this exact specification, and 33% of the stones appear at more than one of them, with an average price spread of 65%. Half of all listings fall between HK$8,239 HKD and HK$15,249 HKD per carat. Over the last 30 days the median price moved -3.6% and the number of listings moved +2.2%.

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

141

Lowest Price

HK$3,570 HKD

Highest Price

HK$34,927 HKD

Average Price

HK$10,782 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

32.9%

Price Spread

65.3%

30-Day Price Trend

-3.6%

30-Day Supply Change

+2.2%

Volatility (30d)

0.02

Price Range

Price per carat distribution across retailers

$1,369/ct

10th Percentile

$896

Median

$1,369

90th Percentile

$2,740

Score Distribution

446 diamonds scored across 4 quality tiers

Excellent

45 (10.1%)

Very Good

75 (16.8%)

Good

98 (22.0%)

Average

228 (51.1%)

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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