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Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 53 of them, across 35,164 current listings.

Updated November 4, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

35,164

Retailers carrying

53

Median confirmed price

NZ$550

Grade combinations

27

Certificate mix:IGI 33,645 · GCAL 135 · GIA 21 · HRD 11

What it actually costs

Half of these diamonds are listed between NZ$353 and NZ$920 (as of November 4, 2026).

Lower 10% NZ$284Median NZ$550Upper 10% NZ$1,171

Middle half listed between NZ$353 to NZ$920

Certificated stones with a recently confirmed price only, 3,048 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

378%

Typical difference

NZ$1,526

Stones compared

2,103

Across 2,103 stones of this size and shape carried by more than one retailer, the dearest listing sits 378% above the cheapest for the identical certificated diamond, a typical gap of NZ$1,526. 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.

  1. 1Rare Carat2,274 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
  3. 3NZ Jewellers1,894 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
  5. 5Aurelinne1,639 in stock
    United States·Founded 2021·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  7. 7

    The Perfect Carat

    1,578 in stock
    US
    Terms not yet verified
  10. 10Adiamor1,252 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  2. 12B2C Jewels1,055 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
  8. 18Cape Diamonds759 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
  11. 21Yorxs689 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  15. 25Blue Nile563 in stock
    United States·Founded 1999·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Blue Nile

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 VVS29,037 · 49rD VVS16,812 · 47rD VS16,320 · 47rE VVS22,705 · 49rE VS11,930 · 49rE VVS11,712 · 47rD VS21,163 · 43rD IF1,041 · 43rE VS2669 · 37rF VVS2633 · 44rF VS1616 · 40rD FL495 · 34rG VVS2275 · 29rF VS2250 · 32rG VS1222 · 31rF VVS1216 · 42rE IF213 · 37rH VS1199 · 26rG VS2166 · 25rH VS2152 · 19rH VVS2130 · 22rE FL56 · 28rI VS154 · 18rI VS243 · 15rF IF17 · 15rI VVS217 · 13rG VVS114 · 11r

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 2,103 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 378%, about NZ$1,526.

Can I see retailers for one exact grade?

Yes. Each of the 27 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.

Where to Buy 0.75ct Lab Grown Marquise Diamonds | Carat Hunter