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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 61 of them, across 39,217 current listings.

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

The market at this size and shape

Active listings

39,217

Retailers carrying

61

Median confirmed price

NZ$824

Grade combinations

29

Certificate mix:IGI 37,001 · GIA 527 · GCAL 460 · HRD 1

What it actually costs

Half of these diamonds are listed between NZ$516 and NZ$1,389 (as of November 6, 2026).

Lower 10% NZ$400Median NZ$824Upper 10% NZ$2,234

Middle half listed between NZ$516 to NZ$1,389

Certificated stones with a recently confirmed price only, 3,247 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 Carat2,852 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
  4. 4NZ Jewellers1,809 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
  5. 5Carbon Sparkle1,782 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
  9. 9

    The Perfect Carat

    1,570 in stock
    US·GCAL, GIA, IGI
    Terms not yet verified
  10. 10Adiamor1,557 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
Show 51 more retailers
  1. 11B2C Jewels1,405 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. 12Aurelinne1,372 in stock
    United States·Founded 2021·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  5. 15Yorxs1,171 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  7. 17Cape Diamonds1,005 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
  18. 28

    GemTrove

    440 in stock
    AU·GCAL, GIA, IGI
    Terms not yet verified
  20. 30Blue Nile408 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Blue Nile
  24. 34RockHer348 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  25. 35GemsNY246 in stock
    United States·Founded 1988·GCAL, IGI·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  27. 37Jared221 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  29. 39Zales218 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  35. 45Allurez75 in stock
    United States·Founded 2010·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  40. 50ZCOVA25 in stock
    Malaysia·Founded 2015·IGI·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  44. 54VRAI14 in stock
    United States·Founded 2014·IGI
    Terms not yet verified
    Visit VRAI
  45. 5525karats9 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. 57

    Whiteflash

    6 in stock
    US·IGI
    Terms not yet verified
  51. 61

    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.

31 of the 56 retailers with shipping details ship to New Zealand. 25 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.

E VVS25,541 · 56rD VVS25,259 · 56rD VVS15,003 · 50rD IF4,509 · 48rD FL3,749 · 40rE VS13,434 · 53rD VS13,241 · 54rE VVS11,883 · 53rF VVS21,878 · 52rF VS11,051 · 49rE VS2805 · 41rF VVS1448 · 43rD VS2421 · 42rE IF375 · 38rG VS1364 · 33rF VS2318 · 36rG VVS2236 · 33rE FL218 · 33rE SI169 · 24rG VVS169 · 23rG VS266 · 23rH VS165 · 11rF IF40 · 25rH VS237 · 8rD SI133 · 18rH VVS233 · 6rH VVS127 · 3rG SI112 · 6rF SI111 · 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

  • Marquise: a pointed-end ellipse that faces up large for its carat.
  • 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 29 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.