How much does a 3.00 to 4.99ct G SI1 natural heart diamond cost?

As of November 2026, 3.00 to 4.99ct G SI1 natural heart diamonds typically cost $31,885 SGD to $184,506 SGD, with a median price of $51,729 SGD. There are currently 26 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI1 heart diamond?

About 30% of these diamonds are available at multiple retailers, with an average price spread of 12%. A comparison tool like Carat Hunter lets you see all the prices side by side.

3.00 to 4.99ct G SI1 Natural Heart

Quick answer

As of November 2026, there are 26 natural heart diamonds with G colour and SI1 clarity in the 3.00 to 4.99ct range available across retailers worldwide. Prices typically run $31,885 SGD to $184,506 SGD, with a median of $51,729 SGD. At least 25 retailers stock this exact specification, and 30% of the stones appear at more than one of them, with an average price spread of 12%. Half of all listings fall between $9,702 SGD and $10,979 SGD per carat. The same specification in lab grown form lists at a median of about $482 SGD per carat. Over the last 30 days the median price moved -3.4% and the number of listings moved +7.0%.

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. Heart natural stones in the index: 2,374 USD per carat, +9.8% 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: November 2026

Available

Lowest Price

$22,186 SGD

Highest Price

$237,054 SGD

Average Price

$74,277 SGD