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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, 61 of them, across 35,454 current listings.

Updated November 3, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

35,454

Retailers carrying

61

Median confirmed price

NZ$1,155

Grade combinations

30

Certificate mix:GIA 29,889 · IGI 1,485 · HRD 24

What it actually costs

Half of these diamonds are listed between NZ$892 and NZ$1,629 (as of November 3, 2026).

Lower 10% NZ$739Median NZ$1,155Upper 10% NZ$2,001

Middle half listed between NZ$892 to NZ$1,629

Certificated stones with a recently confirmed price only, 9,405 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

26%

Typical difference

NZ$230

Stones compared

5,532

Across 5,532 stones of this size and shape carried by more than one retailer, the dearest listing sits 26% above the cheapest for the identical certificated diamond, a typical gap of NZ$230. 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.

  7. 7Allurez1,796 in stock
    United States·Founded 2010·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  9. 9NZ Jewellers1,098 in stock
    New Zealand·Founded 2006·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
Show 15 more retailers
  3. 13ZCOVA824 in stock
    Malaysia·Founded 2015·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  7. 17Cape Diamonds602 in stock
    South Africa·Founded 2005·7-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  12. 22Aurelinne562 in stock
    United States·Founded 2021·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  13. 23

    The Perfect Carat

    505 in stock
    US
    Terms not yet verified
  14. 24

    GemTrove

    439 in stock
    AU
    Terms not yet verified
  15. 25RockHer438 in stock
    United States·Founded 2016·40-day returns·Ships to New Zealand
    Terms not yet verified
    Visit RockHer

Stock counts are updated daily. Founded and shipping details come from public sources. Return terms are our summary of each retailer's own policy page, dated per retailer above. Retailers change their terms, so check the retailer's own returns and shipping pages before you buy.

14 of the 25 retailers ship to New Zealand. 11 do not.

Narrow it down by grade

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

G VS23,051 · 53rG VS12,517 · 53rD VS12,372 · 56rE VS12,254 · 54rF VS12,116 · 58rF VS21,898 · 57rD VVS21,522 · 58rE VS21,521 · 50rD VVS11,444 · 54rE VVS21,383 · 56rD VS21,382 · 54rH VS11,380 · 48rG VVS21,278 · 52rG VVS11,183 · 55rH VS21,094 · 51rF VVS21,092 · 53rE VVS11,091 · 49rH VVS21,016 · 53rF VVS1972 · 52rH VVS1677 · 54rE IF555 · 46rI VVS1478 · 44rF IF462 · 45rI IF433 · 39rI VS2421 · 43rI VS1412 · 48rD IF400 · 48rI VVS2365 · 40rG IF319 · 42rH IF295 · 38r

Stones at this spec now

Current 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 5,532 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 26%, about NZ$230.

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?

Listings refresh as we re-read each retailer, most of them every day. 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.