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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, 63 of them, across 53,702 current listings.

Updated November 7, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

53,702

Retailers carrying

63

Median confirmed price

NZ$1,177

Grade combinations

56

Certificate mix:GIA 41,532 · IGI 1,955 · HRD 35

What it actually costs

Half of these diamonds are listed between NZ$907 and NZ$1,689 (as of November 7, 2026).

Lower 10% NZ$749Median NZ$1,177Upper 10% NZ$2,050

Middle half listed between NZ$907 to NZ$1,689

Certificated stones with a recently confirmed price only, 9,282 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Every retailer that stocks this spec

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

  5. 5Allurez2,833 in stock
    United States·Founded 2010·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  9. 9NZ Jewellers1,429 in stock
    New Zealand·Founded 2006·GIA, HRD, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
Show 53 more retailers
  1. 11ZCOVA1,320 in stock
    Malaysia·Founded 2015·GIA·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  5. 15Carbon Sparkle784 in stock
    United States·GIA, HRD, IGI·21-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  6. 16Aurelinne762 in stock
    United States·Founded 2021·GIA, HRD, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  9. 19

    The Perfect Carat

    706 in stock
    US·GIA, HRD, IGI
    Terms not yet verified
  10. 20Cape Diamonds675 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  12. 22B2C Jewels529 in stock
    United States·Founded 2004·GIA, HRD, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  14. 24RockHer519 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  16. 26

    GemTrove

    444 in stock
    AU·GIA, IGI
    Terms not yet verified
  23. 33Yorxs361 in stock
    Germany·Founded 2011·GIA, HRD, IGI
    Terms not yet verified
    Visit Yorxs
  32. 42Zales131 in stock
    United States·Founded 1924·GIA
    Terms not yet verified
    Visit Zales
  33. 43Jared128 in stock
    United States·Founded 1993·GIA
    Terms not yet verified
    Visit Jared
  38. 48Rare Carat85 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  42. 52

    Washington Diamond

    55 in stock
    US·GIA
    Terms not yet verified

Stock counts reflect current listings. 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.

35 of the 59 retailers with shipping details ship to New Zealand. 24 do not. 4 retailers have not published any shipping details.

Narrow it down by grade

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

G VS23,138 · 55rG VS12,641 · 53rD VS12,609 · 61rF SI12,503 · 56rE VS12,463 · 58rG SI12,388 · 47rF VS12,279 · 61rF VS22,086 · 59rE SI11,964 · 55rH SI11,777 · 52rD VVS21,679 · 62rE VS21,659 · 55rD VVS11,590 · 57rH VS11,532 · 51rD VS21,478 · 60rE VVS21,478 · 59rD SI11,406 · 55rG VVS21,283 · 54rH VS21,219 · 54rF VVS21,169 · 56rE VVS11,146 · 53rG VVS11,143 · 58rH VVS21,019 · 55rF VVS1998 · 55rF SI2860 · 43rI SI1826 · 46rG SI2784 · 37rE SI2773 · 31rH VVS1640 · 58rE IF582 · 47rI VVS1459 · 47rF IF444 · 49rI VS1441 · 51rI VS2440 · 44rI IF422 · 42rD IF403 · 49rI VVS2388 · 42rH SI2369 · 29rJ VVS1369 · 45rD SI2368 · 40rG IF316 · 44rH IF274 · 40rJ VS2260 · 41rJ VVS2240 · 35rJ VS1197 · 37rI SI2191 · 24rJ IF170 · 33rJ SI1163 · 34rK IF120 · 30rK VVS1118 · 30rK VS188 · 25rK VS273 · 30rK VVS272 · 28rJ SI264 · 23rK SI162 · 24rK SI213 · 10r

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?

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Can I see retailers for one exact grade?

Yes. Each of the 56 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.