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Carat Hunter · Where to buy diamonds

Where to buy a 3ct natural heart diamond

Every retailer in our index stocking this size and shape, 57 of them, across 2,934 live listings.

Updated September 20, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

2,934

Retailers carrying

57

Median active price

SGD 31,692

Grade combinations

27

Certificate mix:GIA 2,297 · IGI 281 · HRD 89

What it actually costs

Lower 10% SGD 12,987Median SGD 31,692Upper 10% SGD 72,091

Middle half sell between SGD 19,081 to SGD 49,993

Certificated stones with a live price only, 1,179 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

44%

Typical difference

SGD 11,222

Stones compared

751

Across 751 stones of this size and shape carried by more than one retailer, the dearest listing sits 44% above the cheapest for the identical certificated diamond, a typical gap of SGD 11,222. That gap is what comparing before you buy avoids.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

  6. 6

    MOH London

    129 in stock
    United Kingdom
Show 15 more retailers

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified June 15, 2026.

Narrow it down by grade

Each combination below has its own page with the retailers that stock exactly that grade.

D VS2356 · 40rH VS2263 · 44rE VS2249 · 41rI VS2221 · 41rH VS1170 · 42rG VS2162 · 37rD VVS1144 · 39rI VS1128 · 32rI VVS1116 · 33rD VS1115 · 37rE VS196 · 35rD FL95 · 30rD IF94 · 36rG VS193 · 27rG VVS268 · 28rI VVS266 · 24rH VVS161 · 32rF VS259 · 30rD VVS257 · 31rF VS155 · 36rH VVS252 · 30rE VVS242 · 29rG VVS133 · 20rI IF31 · 23rE IF31 · 25rF VVS131 · 16rE VVS114 · 10r

Stones at this spec now

Live examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

What this spec means

  • Heart: a brilliant cut with a cleft and a pointed tip, classic and recognizable.
  • Natural: mined diamonds with the certification, provenance and resale profile traditional buyers expect.

Frequently asked

How much do retailers differ on the same diamond?

Across 751 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 44%, about SGD 11,222.

Can I see retailers for one exact grade?

Yes. Each of the 27 colour and clarity combinations above has its own page listing the retailers that stock exactly that grade.

Does Carat Hunter earn commission from these retailers?

No. We earn zero affiliate revenue from any retailer in our index.

How fresh is this data?

Live listings refresh daily. Static facts about each retailer refresh weekly.

How is the retailer ranking calculated?

Strictly by active inventory count for this exact spec. The retailer carrying the most stones at the spec ranks first. There is no editorial input, weighting or affiliate consideration.

Why do you not show per-retailer prices on this page?

Prices vary per stone, not per store. Click through to any matched diamond and you will see every retailer's price on the exact same physical stone, which is the meaningful comparison.

Where to Buy 3ct Natural Heart Diamonds | Carat Hunter