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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, 61 of them, across 177,124 current listings.

Updated October 29, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

177,124

Retailers carrying

61

Median confirmed price

NZ$538

Grade combinations

30

Certificate mix:IGI 170,559 · GCAL 832 · GIA 638 · HRD 22

What it actually costs

Half of these diamonds are listed between NZ$369 and NZ$864 (as of October 29, 2026).

Lower 10% NZ$335Median NZ$538Upper 10% NZ$1,425

Middle half listed between NZ$369 to NZ$864

Certificated stones with a recently confirmed price only, 15,577 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

322%

Typical difference

NZ$1,498

Stones compared

11,961

Across 11,961 stones of this size and shape carried by more than one retailer, the dearest listing sits 322% above the cheapest for the identical certificated diamond, a typical gap of NZ$1,498. That gap is what comparing before you buy avoids.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

  2. 2Rare Carat9,922 in stock
    United States·Founded 2016·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  4. 4NZ Jewellers8,197 in stock
    New Zealand·Founded 2006·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  9. 9Aurelinne7,091 in stock
    United States·Founded 2021·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
Show 15 more retailers
  1. 11Adiamor6,942 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  2. 12B2C Jewels6,788 in stock
    United States·Founded 2004·30-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  3. 13

    The Perfect Carat

    6,483 in stock
    US
    Terms not yet verified
  4. 14Moon Ocean6,394 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Moon Ocean
  8. 18Cape Diamonds5,110 in stock
    South Africa·Founded 2005·7-day returns·Ships to New Zealand
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  9. 19Yorxs5,062 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs

Stock counts are updated daily. 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.

15 of the 25 retailers ship to New Zealand. 10 do not.

Narrow it down by grade

Each combination below has its own page with the retailers that stock exactly that grade.

D VVS230,054 · 54rE VVS224,334 · 53rD VVS119,115 · 55rE VS117,131 · 54rD VS115,586 · 54rD IF13,177 · 51rD FL12,847 · 39rE VVS110,918 · 54rF VVS27,159 · 52rE VS25,272 · 46rF VS14,972 · 52rD VS23,521 · 47rE IF2,592 · 50rG VS12,109 · 41rG VVS21,994 · 42rF VVS11,964 · 46rF VS21,267 · 40rH VS1724 · 34rG VS2694 · 32rE FL429 · 36rH VVS2377 · 31rH VS2202 · 27rG VVS1189 · 37rF IF167 · 39rI VS1161 · 20rI VS267 · 18rH VVS135 · 18rI VVS225 · 17rF FL21 · 17rI VVS117 · 17r

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?

Across 11,961 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 322%, about NZ$1,498.

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.