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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, 58 of them, across 109,121 current listings.

Updated October 30, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

109,121

Retailers carrying

58

Median confirmed price

NZ$463

Grade combinations

29

Certificate mix:IGI 104,573 · GIA 1,392 · GCAL 117 · HRD 19

What it actually costs

Half of these diamonds are listed between NZ$353 and NZ$736 (as of October 30, 2026).

Lower 10% NZ$325Median NZ$463Upper 10% NZ$2,085

Middle half listed between NZ$353 to NZ$736

Certificated stones with a recently confirmed price only, 13,154 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

248%

Typical difference

NZ$1,293

Stones compared

10,248

Across 10,248 stones of this size and shape carried by more than one retailer, the dearest listing sits 248% above the cheapest for the identical certificated diamond, a typical gap of NZ$1,293. 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.

  5. 5Adiamor5,282 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  7. 7Aurelinne5,226 in stock
    United States·Founded 2021·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
  8. 8NZ Jewellers5,219 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. 9B2C Jewels4,955 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
Show 15 more retailers
  1. 11

    The Perfect Carat

    4,567 in stock
    US
    Terms not yet verified
  3. 13Moon Ocean3,884 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Moon Ocean
  6. 16Cape Diamonds3,610 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
  14. 24Yorxs1,920 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.

13 of the 25 retailers ship to New Zealand. 12 do not.

Narrow it down by grade

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

D VVS226,095 · 47rD VS115,816 · 49rE VVS213,588 · 48rD VVS112,891 · 48rE VS111,820 · 47rE VVS14,875 · 42rF VVS24,448 · 43rD IF3,984 · 44rF VS13,107 · 41rD VS22,683 · 40rE VS22,674 · 39rD FL1,636 · 30rF VVS11,116 · 38rG VS1950 · 34rG VVS2860 · 33rE IF844 · 40rF VS2625 · 36rE FL369 · 27rG VVS1198 · 33rG VS2139 · 28rH VVS2107 · 26rH VS1103 · 28rF FL56 · 20rI VVS236 · 20rH VVS126 · 22rF IF22 · 12rH VS220 · 18rI VS118 · 15rI VS214 · 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

  • Heart: a brilliant cut with a cleft and a pointed tip, classic and recognizable.
  • 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 10,248 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 248%, about NZ$1,293.

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?

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.