How much does a 3.00 to 4.99ct D SI1 natural oval diamond cost?

As of October 2026, 3.00 to 4.99ct D SI1 natural oval diamonds typically cost HK$313,310 HKD to HK$694,465 HKD, with a median price of HK$432,935 HKD. There are currently 166 diamonds matching this specification available across retailers.

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

About 30% of these diamonds are available at multiple retailers, with an average price spread of 26%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct D SI1 Natural Oval

Quick answer

As of October 2026, there are 166 natural oval diamonds with D colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$313,310 HKD to HK$694,465 HKD, with a median of HK$432,935 HKD. At least 57 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 26%. Half of all listings fall between HK$113,343 HKD and HK$146,391 HKD per carat. The same specification in lab grown form lists at a median of about HK$2,976 HKD per carat. Over the last 30 days the median price moved +0.6% and the number of listings moved +6.1%.

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

166

Lowest Price

HK$178,549 HKD

Highest Price

HK$1,159,301 HKD

Average Price

HK$474,777 HKD

Market Intelligence

Retailers Selling

Cross Retailer %

30.4%

Price Spread

25.5%

30-Day Price Trend

+0.6%

30-Day Supply Change

+6.1%

Volatility (30d)

0.00

Price Range

Price per carat distribution across retailers

$16,501/ct

10th Percentile

$12,748

Median

$16,501

90th Percentile

$21,743

Score Distribution

512 diamonds scored across 4 quality tiers

Excellent

57 (11.1%)

Very Good

106 (20.7%)

Good

98 (19.1%)

Average

251 (49.0%)

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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

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Lab-Grown D 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