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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 65 of them, across 181,559 current listings.

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

The market at this size and shape

Active listings

181,559

Retailers carrying

65

Median confirmed price

NZ$516

Grade combinations

41

Certificate mix:IGI 174,115 · GCAL 846 · GIA 646 · HRD 23

What it actually costs

Half of these diamonds are listed between NZ$363 and NZ$853 (as of November 6, 2026).

Lower 10% NZ$329Median NZ$516Upper 10% NZ$1,366

Middle half listed between NZ$363 to NZ$853

Certificated stones with a recently confirmed price only, 15,651 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.

  2. 2Rare Carat10,167 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
  3. 3Carbon Sparkle9,455 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
  4. 4NZ Jewellers9,185 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
  8. 8Aurelinne7,731 in stock
    United States·Founded 2021·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  9. 9

    The Perfect Carat

    7,539 in stock
    US·GCAL, GIA, IGI
    Terms not yet verified
Show 55 more retailers
  1. 11Adiamor6,934 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  3. 13B2C Jewels6,541 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. 17Yorxs4,559 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  9. 19Cape Diamonds4,363 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
  21. 31GemsNY1,786 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit GemsNY
  24. 34

    GemTrove

    1,566 in stock
    AU·GCAL, GIA, IGI
    Terms not yet verified
  25. 35Blue Nile873 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit Blue Nile
  29. 39RockHer507 in stock
    United States·Founded 2016·GIA, IGI·Ships to New Zealand
    Terms not yet verified
    Visit RockHer
  34. 44Allurez271 in stock
    United States·Founded 2010·IGI·Ships to New Zealand
    Terms not yet verified
    Visit Allurez
  36. 46Jared220 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  38. 48Zales209 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  45. 55ZCOVA48 in stock
    Malaysia·Founded 2015·IGI·Ships to New Zealand
    Terms not yet verified
    Visit ZCOVA
  46. 5625karats33 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
  50. 60VRAI3 in stock
    United States·Founded 2014
    Terms not yet verified
    Visit VRAI
  51. 61

    Whiteflash

    3 in stock
    US·IGI
    Terms not yet verified
  52. 62

    Diamond Culture

    2 in stock
    HK·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.

34 of the 60 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 VVS230,022 · 55rE VVS224,402 · 55rD VVS119,698 · 56rE VS117,116 · 55rD VS115,994 · 53rD IF13,826 · 51rD FL13,184 · 40rE VVS111,192 · 54rF VVS27,328 · 54rE VS25,329 · 46rF VS15,181 · 53rD VS23,684 · 46rE IF2,675 · 50rG VS12,158 · 39rF VVS12,023 · 48rG VVS22,017 · 42rF VS21,396 · 42rG VS2713 · 33rH VS1711 · 34rE FL440 · 37rE SI1401 · 28rH VVS2379 · 35rF SI1237 · 27rD SI1227 · 25rH VS2203 · 27rG VVS1192 · 38rF IF178 · 39rI VS1157 · 18rH SI186 · 19rG SI185 · 21rI VS268 · 18rH VVS138 · 19rE SI230 · 22rI SI125 · 13rI VVS225 · 17rF FL22 · 18rK VVS220 · 13rD SI219 · 11rI VVS116 · 16rF SI215 · 13rG SI214 · 8r

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 41 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.