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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, 50 of them, across 42,140 live listings.

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

The market at this size and shape

Active listings

42,140

Retailers carrying

50

Median active price

A$748

Grade combinations

29

Certificate mix:IGI 39,761 · GIA 1,328 · GCAL 21 · HRD 12

What it actually costs

Lower 10% A$329Median A$748Upper 10% A$1,943

Middle half sell between A$597 to A$965

Certificated stones with a live price only, 9,772 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

208%

Typical difference

A$1,336

Stones compared

6,244

Across 6,244 stones of this size and shape carried by more than one retailer, the dearest listing sits 208% above the cheapest for the identical certificated diamond, a typical gap of A$1,336. 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.

2 of the 25 retailers ship to Australia. 23 do not.

Narrow it down by grade

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

D VVS28,398 · 47rE VVS26,950 · 40rD VS15,955 · 45rE VS15,250 · 42rD VVS13,759 · 35rF VVS21,960 · 39rE VVS11,924 · 36rF VS11,586 · 38rE VS21,195 · 31rD VS21,174 · 36rD IF654 · 36rG VVS2629 · 32rF VS2585 · 34rG VS1504 · 33rF VVS1461 · 32rE IF333 · 30rD FL196 · 20rH VS1111 · 22rG VS2109 · 26rG VVS170 · 18rF IF58 · 22rH VVS248 · 17rH VVS142 · 20rI VS240 · 11rI VS137 · 15rE FL35 · 13rH VS233 · 13rI VVS216 · 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 6,244 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 208%, about A$1,336.

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.