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Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown round diamond

Every retailer in our index stocking this size and shape, 70 of them, across 154,424 live listings.

Updated September 16, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

154,424

Retailers carrying

70

Median active price

NZ$465

Grade combinations

33

Certificate mix:IGI 139,796 · GIA 5,018 · GCAL 650 · HRD 205 · AGS 2

What it actually costs

Lower 10% NZ$221Median NZ$465Upper 10% NZ$1,612

Middle half sell between NZ$344 to NZ$807

Certificated stones with a live price only, 30,586 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

146%

Typical difference

NZ$606

Stones compared

19,727

Across 19,727 stones of this size and shape carried by more than one retailer, the dearest listing sits 146% above the cheapest for the identical certificated diamond, a typical gap of NZ$606. 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.

Show 15 more retailers
  9. 19

    The Perfect Carat

    3,115 in stock
    US
  13. 23

    GemTrove

    1,748 in stock
    AU

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified September 2, 2026.

1 of the 25 retailers ship to New Zealand. 24 do not.

Narrow it down by grade

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

D VVS244,908 · 61rD VVS135,518 · 49rD VS118,952 · 49rE VVS29,977 · 48rE VS17,707 · 47rE VVS17,110 · 43rD VS26,710 · 43rD IF3,443 · 44rE VS22,732 · 36rF VVS22,319 · 40rD FL2,100 · 33rF VS11,832 · 38rE IF1,044 · 36rF VVS11,044 · 36rG VVS2993 · 34rH VS1830 · 20rH VVS2802 · 25rF VS2696 · 32rI VS1690 · 19rG VS2673 · 21rH VS2651 · 21rI VS2605 · 23rI VVS2492 · 20rG VS1480 · 27rG VVS1418 · 24rH VVS1369 · 15rI VVS1313 · 14rG IF276 · 8rF IF274 · 27rH IF263 · 9rI IF105 · 10rE FL87 · 22rF FL11 · 11r

Stones at this spec now

Live examples carried by more than one retailer, so the comparison is real. Prices shown in USD.

What this spec means

  • Round: the most common cut, with the highest light return per carat.
  • Lab-grown: chemically identical to natural diamonds, typically 60% to 80% less than a comparable natural cohort.

Frequently asked

How much do retailers differ on the same diamond?

Across 19,727 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 146%, about NZ$606.

Can I see retailers for one exact grade?

Yes. Each of the 33 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?

Live listings refresh daily. 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 Round Diamonds | Carat Hunter