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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown heart diamond

Every retailer in our index stocking this size and shape, 53 of them, across 73,612 current listings.

Updated November 5, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

73,612

Retailers carrying

53

Median confirmed price

NZ$569

Grade combinations

28

Certificate mix:IGI 69,569 · GIA 1,778 · HRD 39 · GCAL 17

What it actually costs

Half of these diamonds are listed between NZ$459 and NZ$979 (as of November 5, 2026).

Lower 10% NZ$417Median NZ$569Upper 10% NZ$3,282

Middle half listed between NZ$459 to NZ$979

Certificated stones with a recently confirmed price only, 8,017 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

319%

Typical difference

NZ$1,813

Stones compared

6,258

Across 6,258 stones of this size and shape carried by more than one retailer, the dearest listing sits 319% above the cheapest for the identical certificated diamond, a typical gap of NZ$1,813. 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. 5NZ Jewellers3,840 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
  7. 7

    The Perfect Carat

    3,435 in stock
    US
    Terms not yet verified
  8. 8B2C Jewels3,268 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
  9. 9Aurelinne3,181 in stock
    United States·Founded 2021·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Aurelinne
Show 15 more retailers
  1. 11Adiamor3,084 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  5. 15Moon Ocean2,292 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to New Zealand
    Terms not yet verified
    Visit Moon Ocean
  8. 18Cape Diamonds1,727 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. 24RockHer1,170 in stock
    United States·Founded 2016·40-day returns·Ships to New Zealand
    Terms not yet verified
    Visit RockHer

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.

16 of the 25 retailers ship to New Zealand. 9 do not.

Narrow it down by grade

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

D VVS215,087 · 51rE VVS211,524 · 49rD VS111,021 · 49rE VS18,092 · 51rD VVS16,793 · 45rF VVS23,510 · 49rE VVS13,404 · 46rF VS12,620 · 44rD VS22,190 · 44rE VS22,138 · 42rD IF1,563 · 47rF VS2943 · 37rG VVS2934 · 39rD FL883 · 32rF VVS1810 · 41rE IF623 · 44rG VS1618 · 37rH VS1144 · 26rG VVS1129 · 30rG VS2112 · 27rE FL105 · 26rF IF101 · 31rH VVS274 · 26rH VVS162 · 26rI VS153 · 17rH VS234 · 18rF FL23 · 21rI VS212 · 12r

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 6,258 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 319%, about NZ$1,813.

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.