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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown cushion diamond

Every retailer in our index stocking this size and shape, 63 of them, across 22,827 current listings.

Updated November 6, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

22,827

Retailers carrying

63

Median confirmed price

NZ$656

Grade combinations

34

Certificate mix:IGI 21,129 · GIA 1,081 · GCAL 238 · HRD 18

What it actually costs

Half of these diamonds are listed between NZ$427 and NZ$1,123 (as of November 6, 2026).

Lower 10% NZ$365Median NZ$656Upper 10% NZ$2,409

Middle half listed between NZ$427 to NZ$1,123

Certificated stones with a recently confirmed price only, 2,860 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.

  1. 1Rare Carat1,504 in stock
    United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6Adiamor1,110 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  7. 7B2C Jewels1,096 in stock
    United States·Founded 2004·GIA, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 53 more retailers
  3. 13Yorxs763 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  4. 14Cape Diamonds755 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
  15. 25RockHer269 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  16. 26Blue Nile251 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Blue Nile
  18. 28Jared171 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  23. 33Zales159 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  28. 38GemsNY90 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  29. 39Allurez83 in stock
    United States·Founded 2010·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  34. 44

    The Perfect Carat

    40 in stock
    US·GIA, HRD, IGI
    Terms not yet verified
  37. 47NZ Jewellers37 in stock
    New Zealand·Founded 2006·HRD, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  39. 49VRAI20 in stock
    United States·Founded 2014
    Terms not yet verified
    Visit VRAI
  41. 51

    GemTrove

    13 in stock
    AU·IGI
    Terms not yet verified
  43. 53ZCOVA6 in stock
    Malaysia·Founded 2015·IGI·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  46. 56

    Distinctive Gem

    3 in stock
    US·IGI
    Terms not yet verified
  49. 59

    Lauren B

    2 in stock
    US
    Terms not yet verified
  51. 61

    Diamovida

    1 in stock
    CA·IGI
    Terms not yet verified
  53. 63

    Whiteflash

    1 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.

31 of the 56 retailers with shipping details ship to New Zealand. 25 do not. 7 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.

D VVS24,483 · 51rD VS13,309 · 51rE VVS23,198 · 54rE VS12,683 · 52rD VVS12,341 · 49rE VVS1980 · 49rF VS1959 · 42rE VS2739 · 43rF VVS2726 · 43rD VS2598 · 42rD IF435 · 40rD FL416 · 37rG VVS2337 · 35rF VS2304 · 36rG VS1237 · 35rE IF190 · 33rF IF153 · 35rE FL124 · 21rG VS2113 · 32rF VVS186 · 30rF SI172 · 27rH VS166 · 24rH VVS248 · 17rG VVS140 · 16rH VS233 · 12rE SI124 · 17rH VVS121 · 4rD SI116 · 12rF SI215 · 14rI VVS214 · 13rF FL13 · 13rI VS213 · 10rJ VVS212 · 11rG SI111 · 7r

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.
  • Lab-grown: chemically identical to natural diamonds, typically at least 90% less than a comparable natural cohort from 1 carat up.

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 34 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.