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Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown radiant diamond

Every retailer in our index stocking this size and shape, 55 of them, across 26,543 current listings.

Updated November 2, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

26,543

Retailers carrying

55

Median confirmed price

NZ$542

Grade combinations

28

Certificate mix:IGI 25,169 · GIA 168 · GCAL 95 · HRD 3

What it actually costs

Half of these diamonds are listed between NZ$302 and NZ$906 (as of November 2, 2026).

Lower 10% NZ$245Median NZ$542Upper 10% NZ$1,252

Middle half listed between NZ$302 to NZ$906

Certificated stones with a recently confirmed price only, 3,093 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

434%

Typical difference

NZ$1,612

Stones compared

1,996

Across 1,996 stones of this size and shape carried by more than one retailer, the dearest listing sits 434% above the cheapest for the identical certificated diamond, a typical gap of NZ$1,612. 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 Carat1,559 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 Jewellers1,401 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
  4. 4

    The Perfect Carat

    1,378 in stock
    US
    Terms not yet verified
  8. 8Aurelinne1,100 in stock
    United States·Founded 2021·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  9. 9B2C Jewels1,033 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
  10. 10Adiamor1,025 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  5. 15Yorxs713 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  8. 18Cape Diamonds619 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

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 VVS24,285 · 46rD VS13,988 · 47rD VVS13,431 · 47rE VS12,681 · 44rE VVS22,348 · 44rD IF1,392 · 44rF VVS21,186 · 42rE VVS11,165 · 45rF VS11,127 · 39rE VS2864 · 39rD VS2806 · 34rF VS2590 · 34rG VS1483 · 33rG VVS2375 · 38rE IF370 · 41rG VS2284 · 32rD FL258 · 32rH VS1208 · 33rF VVS1180 · 42rH VS2180 · 30rH VVS2122 · 30rF IF79 · 31rI VS150 · 18rI VVS234 · 20rG VVS118 · 18rE FL17 · 17rH VVS111 · 11rI VS211 · 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

  • Radiant: a rectangular brilliant cut that combines the emerald outline with round-style faceting.
  • 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 1,996 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 434%, about NZ$1,612.

Can I see retailers for one exact grade?

Yes. Each of the 28 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.