CaratHunter
Plans

Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown heart diamond

Every retailer in our index stocking this size and shape, 73 of them, across 112,751 current listings.

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

The market at this size and shape

Active listings

112,751

Retailers carrying

73

Median confirmed price

NZ$465

Grade combinations

44

Certificate mix:IGI 107,740 · GIA 1,473 · GCAL 123 · HRD 18

What it actually costs

Half of these diamonds are listed between NZ$355 and NZ$764 (as of November 7, 2026).

Lower 10% NZ$323Median NZ$465Upper 10% NZ$2,143

Middle half listed between NZ$355 to NZ$764

Certificated stones with a recently confirmed price only, 13,214 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 7, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 21% 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.

  3. 3Carbon Sparkle6,137 in stock
    United States·GCAL, GIA, HRD, IGI·21-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  4. 4NZ Jewellers6,050 in stock
    New Zealand·Founded 2006·GCAL, GIA, HRD, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  7. 7Aurelinne5,694 in stock
    United States·Founded 2021·GCAL, GIA, HRD, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  8. 8

    The Perfect Carat

    5,656 in stock
    US·GCAL, GIA, HRD, IGI
    Terms not yet verified
  9. 9Adiamor5,181 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
Show 63 more retailers
  1. 11B2C Jewels4,710 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
  2. 12

    Luvansh

    4,622 in stock
    US
    Terms not yet verified
  9. 19Cape Diamonds2,739 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
  14. 24

    Steven Stone

    2,300 in stock
    UK·GCAL, GIA, IGI
    Terms not yet verified
  15. 25Yorxs2,094 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  20. 30GemsNY1,030 in stock
    United States·Founded 1988·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  24. 34

    SJ Gems

    617 in stock
    ZA·GIA, IGI
    Terms not yet verified
  26. 36

    GemTrove

    464 in stock
    AU·GCAL, GIA, IGI
    Terms not yet verified
  28. 38

    Reeds

    283 in stock
    US·GCAL, IGI
    Terms not yet verified
  29. 39RockHer249 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  30. 40Rare Carat210 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
  33. 43

    Keyzar

    147 in stock
    US·GIA, IGI
    Terms not yet verified
  35. 45

    USA Jewels

    133 in stock
    US·GIA, IGI
    Terms not yet verified
  36. 46Allurez94 in stock
    United States·Founded 2010·IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  37. 47

    deBebians

    92 in stock
    US·IGI
    Terms not yet verified
  39. 49

    Liori Diamonds

    63 in stock
    US·GIA, IGI
    Terms not yet verified
  40. 50ZCOVA59 in stock
    Malaysia·Founded 2015·IGI·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  42. 5225karats35 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
  45. 55

    Washington Diamond

    16 in stock
    US·GIA
    Terms not yet verified
  51. 61Zales6 in stock
    United States·Founded 1924·GCAL, GIA
    Terms not yet verified
    Visit Zales
  52. 62

    Diamond Culture

    5 in stock
    HK·IGI
    Terms not yet verified
  53. 63Jared5 in stock
    United States·Founded 1993·GCAL, GIA
    Terms not yet verified
    Visit Jared
  55. 65

    SkyGem

    5 in stock
    AU·IGI
    Terms not yet verified
  58. 68

    Velur

    3 in stock
    DE·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.

33 of the 58 retailers with shipping details ship to New Zealand. 25 do not. 15 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 VVS226,580 · 52rD VS116,816 · 54rE VVS213,837 · 53rD VVS113,175 · 51rE VS111,395 · 52rE VVS15,105 · 44rF VVS24,365 · 46rD IF4,116 · 49rF VS13,010 · 45rE VS22,787 · 41rD VS22,731 · 45rD FL1,746 · 33rF VVS11,129 · 41rG VS1987 · 37rE IF904 · 41rG VVS2882 · 33rF VS2673 · 39rE FL408 · 30rE SI1356 · 28rD SI1319 · 31rG VVS1209 · 35rG VS2153 · 29rE SI2138 · 24rH VVS2130 · 26rH VS1105 · 28rF SI182 · 31rI SI171 · 13rF FL56 · 20rI SI255 · 15rK VVS249 · 17rG SI142 · 20rI VVS236 · 20rK SI134 · 11rH VVS130 · 22rJ VVS227 · 21rI VS126 · 21rJ SI124 · 13rJ VS223 · 14rF IF22 · 12rH VS220 · 18rJ VS119 · 19rD SI216 · 13rI VS215 · 11rH SI212 · 12r

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.
  • 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 7, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 21% 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 44 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.