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

As of October 2026, 3.00 to 4.99ct E SI1 natural oval diamonds typically cost HK$294,771 HKD to HK$703,445 HKD, with a median price of HK$445,447 HKD. There are currently 114 diamonds matching this specification available across retailers.

Where can I find the best price on a E 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 E SI1 Natural Oval

Quick answer

As of October 2026, there are 114 natural oval diamonds with E colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run HK$294,771 HKD to HK$703,445 HKD, with a median of HK$445,447 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$114,079 HKD and HK$147,940 HKD per carat. The same specification in lab grown form lists at a median of about HK$2,945 HKD per carat. Over the last 30 days the median price moved +0.8% and the number of listings moved +3.9%.

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

114

Lowest Price

HK$192,508 HKD

Highest Price

HK$1,365,685 HKD

Average Price

HK$485,431 HKD