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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, 54 of them, across 50,613 live listings.

Updated September 18, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

50,613

Retailers carrying

54

Median active price

NZ$809

Grade combinations

29

Certificate mix:IGI 47,897 · GIA 1,355 · GCAL 21 · HRD 13

What it actually costs

Lower 10% NZ$480Median NZ$809Upper 10% NZ$2,183

Middle half sell between NZ$619 to NZ$1,065

Certificated stones with a live price only, 9,968 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

200%

Typical difference

NZ$1,443

Stones compared

7,342

Across 7,342 stones of this size and shape carried by more than one retailer, the dearest listing sits 200% above the cheapest for the identical certificated diamond, a typical gap of NZ$1,443. 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
  14. 24

    GemTrove

    334 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.

E VVS29,598 · 40rD VVS29,366 · 48rE VS17,409 · 42rD VS16,465 · 45rD VVS13,860 · 35rF VVS22,542 · 40rF VS12,175 · 38rE VVS12,048 · 35rE VS21,570 · 30rD VS21,266 · 36rG VVS2723 · 32rD IF693 · 37rF VS2691 · 33rG VS1543 · 33rF VVS1466 · 31rE IF355 · 30rD FL199 · 20rH VS1115 · 22rG VS2109 · 26rG VVS179 · 18rF IF58 · 23rH VVS251 · 19rH VVS144 · 20rI VS244 · 13rE FL36 · 13rI VS136 · 15rH VS230 · 14rI VVS215 · 9rF FL13 · 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 7,342 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 200%, about NZ$1,443.

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.

Where to Buy 1.5ct Lab Grown Heart Diamonds | Carat Hunter