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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct natural heart diamond

Every retailer in our index stocking this size and shape, 60 of them, across 41,047 live listings.

Updated September 22, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

41,047

Retailers carrying

60

Median active price

HK$5,428

Grade combinations

30

Certificate mix:GIA 35,040 · IGI 1,756 · HRD 23

What it actually costs

Lower 10% HK$3,381Median HK$5,428Upper 10% HK$8,379

Middle half sell between HK$4,103 to HK$6,857

Certificated stones with a live price only, 14,667 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

41%

Typical difference

HK$1,651

Stones compared

6,673

Across 6,673 stones of this size and shape carried by more than one retailer, the dearest listing sits 41% above the cheapest for the identical certificated diamond, a typical gap of HK$1,651. 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.

Show 15 more retailers
  11. 21

    MOH London

    691 in stock
    United Kingdom

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified September 2, 2026.

Narrow it down by grade

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

G VS23,205 · 51rG VS12,814 · 51rF VS12,586 · 52rE VS12,440 · 53rD VS12,236 · 56rF VS22,147 · 55rE VS21,858 · 50rG VVS21,779 · 48rG VVS11,631 · 52rE VVS21,566 · 54rD VVS11,510 · 50rD VS21,481 · 53rD VVS21,473 · 55rH VS11,395 · 46rF VVS21,386 · 50rH VVS21,366 · 50rE VVS11,246 · 49rF VVS11,199 · 49rH VS21,179 · 48rH VVS1985 · 51rF IF698 · 42rE IF672 · 46rI VVS1664 · 41rG IF539 · 39rI VVS2497 · 43rI VS1493 · 45rI IF492 · 36rD IF472 · 45rH IF441 · 36rI VS2433 · 44r

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 6,673 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 41%, about HK$1,651.

Can I see retailers for one exact grade?

Yes. Each of the 30 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 0.5ct Natural Heart Diamonds | Carat Hunter