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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct natural cushion diamond

Every retailer in our index stocking this size and shape, 69 of them, across 39,364 current listings.

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

The market at this size and shape

Active listings

39,364

Retailers carrying

69

Median confirmed price

NZ$1,168

Grade combinations

57

Certificate mix:GIA 28,577 · IGI 2,919 · AGS 36 · HRD 15

What it actually costs

Half of these diamonds are listed between NZ$937 and NZ$1,973 (as of November 7, 2026).

Lower 10% NZ$828Median NZ$1,168Upper 10% NZ$4,275

Middle half listed between NZ$937 to NZ$1,973

Certificated stones with a recently confirmed price only, 8,338 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.

  2. 2Rare Carat2,882 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
  7. 7Allurez1,501 in stock
    United States·Founded 2010·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  8. 8Yorxs1,489 in stock
    Germany·Founded 2011·GIA, HRD, IGI
    Terms not yet verified
    Visit Yorxs
Show 59 more retailers
  5. 15Cape Diamonds846 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
  6. 16RockHer765 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  8. 18ZCOVA717 in stock
    Malaysia·Founded 2015·GIA·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  11. 21B2C Jewels632 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
  22. 32Zales217 in stock
    United States·Founded 1924·AGS, GIA
    Terms not yet verified
    Visit Zales
  23. 33Jared214 in stock
    United States·Founded 1993·AGS, GIA
    Terms not yet verified
    Visit Jared
  28. 38

    The Perfect Carat

    135 in stock
    US·GIA, IGI
    Terms not yet verified
  29. 39

    GemTrove

    111 in stock
    AU·GIA
    Terms not yet verified
  46. 56

    Washington Diamond

    20 in stock
    US·GIA
    Terms not yet verified
  49. 59NZ Jewellers10 in stock
    New Zealand·Founded 2006·GIA, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  56. 66GemsNY1 in stock
    United States·Founded 1988·GIA·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  57. 67

    Lauren B

    1 in stock
    US
    Terms not yet verified
  58. 68

    Robbins Brothers

    1 in stock
    US·IGI
    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 63 retailers with shipping details ship to New Zealand. 28 do not. 6 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.

E VS12,213 · 53rD VVS12,111 · 58rF VS12,023 · 47rE VVS11,896 · 53rD VS11,741 · 53rG VS11,645 · 49rE VVS21,632 · 47rF VS21,588 · 56rD VVS21,564 · 50rE VS21,536 · 58rF VVS21,518 · 50rG VVS21,411 · 49rF VVS11,404 · 54rG VVS11,282 · 52rG VS21,199 · 53rD VS21,124 · 57rD SI11,093 · 54rH VVS11,044 · 50rH VS1841 · 53rE SI1732 · 54rH VVS2727 · 55rF SI1563 · 42rH VS2561 · 54rI VS1554 · 45rG SI1487 · 49rI VVS1471 · 37rD IF401 · 37rF SI2395 · 42rE SI2375 · 36rI VS2357 · 49rI VVS2328 · 44rE IF316 · 37rI IF306 · 40rF IF302 · 36rD SI2295 · 37rJ VVS2282 · 41rG IF276 · 40rJ VS1275 · 43rH SI1269 · 41rJ VS2261 · 42rH IF252 · 45rJ VVS1245 · 36rI SI1206 · 38rH SI2182 · 41rG SI2174 · 34rJ SI1122 · 31rK SI1111 · 22rK VS1104 · 27rJ IF100 · 26rK VVS296 · 23rK VVS190 · 27rK SI283 · 21rI SI266 · 24rJ SI237 · 14rK VS237 · 19rD FL31 · 7rE FL11 · 3r

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

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • 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 57 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.