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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown heart diamond

Every retailer in our index stocking this size and shape, 52 of them, across 63,749 live listings.

Updated September 14, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

63,749

Retailers carrying

52

Median active price

NZ$578

Grade combinations

29

Certificate mix:IGI 61,122 · GIA 1,072 · GCAL 66 · HRD 12

What it actually costs

Lower 10% NZ$255Median NZ$578Upper 10% NZ$1,269

Middle half sell between NZ$458 to NZ$770

Certificated stones with a live price only, 13,581 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

154%

Typical difference

NZ$820

Stones compared

9,567

Across 9,567 stones of this size and shape carried by more than one retailer, the dearest listing sits 154% above the cheapest for the identical certificated diamond, a typical gap of NZ$820. 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
  15. 25

    GemTrove

    379 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 VVS214,921 · 45rD VS110,163 · 41rE VVS29,850 · 36rE VS17,713 · 38rD VVS15,718 · 37rF VVS22,603 · 38rE VVS12,561 · 33rF VS11,881 · 36rD IF1,769 · 35rD VS21,608 · 33rE VS21,451 · 31rF VVS1548 · 31rG VS1523 · 31rD FL444 · 19rG VVS2439 · 28rF VS2411 · 27rE IF398 · 29rG VS2105 · 19rE FL105 · 17rH VS188 · 20rG VVS180 · 22rI VS278 · 8rH VS271 · 10rH VVS267 · 18rI VS160 · 16rI VVS240 · 18rH VVS114 · 10rF IF11 · 10rF FL10 · 10r

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

  • Heart: a brilliant cut with a cleft and a pointed tip, classic and recognizable.
  • 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 9,567 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 154%, about NZ$820.

Can I see retailers for one exact grade?

Yes. Each of the 29 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.