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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown oval diamond

Every retailer in our index stocking this size and shape, 66 of them, across 362,260 current listings.

Updated November 5, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

362,260

Retailers carrying

66

Median confirmed price

NZ$637

Grade combinations

30

Certificate mix:IGI 337,327 · GIA 10,672 · GCAL 3,923 · HRD 13

What it actually costs

Half of these diamonds are listed between NZ$450 and NZ$1,087 (as of November 5, 2026).

Lower 10% NZ$406Median NZ$637Upper 10% NZ$2,179

Middle half listed between NZ$450 to NZ$1,087

Certificated stones with a recently confirmed price only, 29,791 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 5, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 19% 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 Sparkle20,201 in stock
    United States·GCAL, GIA, IGI·21-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  2. 2NZ Jewellers19,204 in stock
    New Zealand·Founded 2006·GCAL, GIA, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  4. 4

    The Perfect Carat

    17,001 in stock
    US·GCAL, GIA, IGI
    Terms not yet verified
  5. 5Aurelinne16,041 in stock
    United States·Founded 2021·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  7. 7Rare Carat14,740 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
Show 56 more retailers
  2. 12Adiamor11,963 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  3. 13B2C Jewels11,959 in stock
    United States·Founded 2004·GCAL, GIA, GSI, IGI·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  12. 22Cape Diamonds8,226 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
  13. 23Yorxs6,801 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  19. 29RockHer4,950 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  20. 30GemsNY4,874 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  26. 36

    GemTrove

    3,000 in stock
    AU·GCAL, GIA, IGI
    Terms not yet verified
  32. 42Blue Nile841 in stock
    United States·Founded 1999·GCAL, GIA, GSI, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Blue Nile
  33. 43Allurez727 in stock
    United States·Founded 2010·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  37. 47Jared312 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  39. 49Zales261 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  40. 50ZCOVA182 in stock
    Malaysia·Founded 2015·IGI·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  44. 5425karats48 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
  48. 58

    Whiteflash

    9 in stock
    US·GIA, IGI
    Terms not yet verified
  49. 59

    Diamond Culture

    8 in stock
    HK·IGI
    Terms not yet verified
  50. 60VRAI7 in stock
    United States·Founded 2014
    Terms not yet verified
    Visit VRAI
  52. 62

    Lauren B

    2 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.

32 of the 60 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.

D VVS263,360 · 60rD VVS150,756 · 60rD VS147,638 · 59rE VVS240,512 · 60rE VS134,634 · 58rE VVS119,085 · 57rD IF17,560 · 53rF VVS217,305 · 55rD FL14,071 · 44rF VS112,159 · 54rD VS211,804 · 51rE VS210,768 · 49rG VVS23,952 · 46rE IF3,912 · 50rF VVS13,744 · 47rF VS23,412 · 47rG VS12,725 · 42rE FL1,231 · 37rG VS2794 · 34rH VS1671 · 36rH VVS2623 · 32rG VVS1549 · 39rF IF450 · 41rH VS2196 · 26rH VVS1123 · 28rG IF69 · 30rF FL65 · 27rI VS142 · 18rI VS224 · 17rI VVS222 · 20r

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

  • Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
  • 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 5, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 19% 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 30 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.