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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown princess diamond

Every retailer in our index stocking this size and shape, 64 of them, across 118,480 current listings.

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

The market at this size and shape

Active listings

118,480

Retailers carrying

64

Median confirmed price

NZ$455

Grade combinations

37

Certificate mix:IGI 111,083 · GIA 1,274 · GCAL 825 · HRD 25

What it actually costs

Half of these diamonds are listed between NZ$347 and NZ$788 (as of November 6, 2026).

Lower 10% NZ$313Median NZ$455Upper 10% NZ$1,452

Middle half listed between NZ$347 to NZ$788

Certificated stones with a recently confirmed price only, 10,289 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. 1Carbon Sparkle7,486 in stock
    United States·GCAL, GIA, GSI, IGI·21-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  3. 3

    The Perfect Carat

    6,513 in stock
    US·GCAL, GIA, GSI, IGI
    Terms not yet verified
  4. 4NZ Jewellers6,238 in stock
    New Zealand·Founded 2006·GCAL, GIA, GSI, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  5. 5Rare Carat6,034 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
  7. 7Aurelinne5,700 in stock
    United States·Founded 2021·GCAL, GIA, GSI, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  9. 9Adiamor4,433 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
Show 54 more retailers
  2. 12B2C Jewels4,215 in stock
    United States·Founded 2004·GCAL, GIA, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  7. 17Yorxs2,709 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  8. 18Cape Diamonds2,533 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
  22. 32Blue Nile829 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Blue Nile
  24. 34GemsNY726 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  25. 35Jared685 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  30. 40Zales374 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  32. 42Allurez353 in stock
    United States·Founded 2010·IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  33. 43RockHer281 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  38. 48ZCOVA132 in stock
    Malaysia·Founded 2015·IGI·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  41. 5125karats77 in stock
    United States·Founded 2008·IGI·60-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, June 15, 2026
    Visit 25karats
  47. 57VRAI11 in stock
    United States·Founded 2014·IGI
    Terms not yet verified
    Visit VRAI
  49. 59

    Whiteflash

    3 in stock
    US·GIA, IGI
    Terms not yet verified
  51. 61

    Diamond Culture

    1 in stock
    HK·IGI
    Terms not yet verified
  52. 62

    Lauren B

    1 in stock
    US
    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.

33 of the 59 retailers with shipping details ship to New Zealand. 26 do not. 5 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 VVS222,885 · 55rE VVS215,531 · 54rE VS115,239 · 55rD VVS113,167 · 56rD VS112,622 · 53rE VVS19,519 · 53rF VVS24,521 · 47rD IF4,372 · 50rF VS13,775 · 44rE VS23,479 · 42rD VS22,484 · 44rE IF2,266 · 44rG VS11,323 · 42rG VVS21,198 · 41rF VS21,148 · 43rF VVS11,067 · 43rD FL928 · 40rE SI1626 · 32rG VS2354 · 38rH VS1295 · 30rG VVS1279 · 37rF IF269 · 31rH VVS2252 · 33rD SI1251 · 29rF SI1154 · 30rH VS2133 · 34rG IF80 · 31rI VS164 · 25rH VVS128 · 16rG SI123 · 12rH SI123 · 17rD SI219 · 15rE FL16 · 16rI VVS216 · 15rI SI213 · 12rI VVS112 · 12rF SI211 · 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

  • Princess: a square brilliant cut, second only to round in popularity.
  • 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 37 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.