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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 108,226 current listings.

Updated October 29, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

108,226

Retailers carrying

58

Median confirmed price

A$373

Grade combinations

29

Certificate mix:IGI 103,724 · GIA 1,393 · GCAL 117 · HRD 19

What it actually costs

Half of these diamonds are listed between A$282 and A$584 (as of October 29, 2026).

Lower 10% A$257Median A$373Upper 10% A$1,618

Middle half listed between A$282 to A$584

Certificated stones with a recently confirmed price only, 13,069 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

247%

Typical difference

A$1,039

Stones compared

10,093

Across 10,093 stones of this size and shape carried by more than one retailer, the dearest listing sits 247% above the cheapest for the identical certificated diamond, a typical gap of A$1,039. 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.

  6. 6Adiamor5,202 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  7. 7Aurelinne5,053 in stock
    United States·Founded 2021·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  8. 8NZ Jewellers5,045 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  10. 10B2C Jewels4,898 in stock
    United States·Founded 2004·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 15 more retailers
  1. 11

    The Perfect Carat

    4,588 in stock
    US
    Terms not yet verified
  6. 16Cape Diamonds3,610 in stock
    South Africa·Founded 2005·7-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  13. 23Yorxs1,953 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.

15 of the 25 retailers ship to Australia. 10 do not.

Narrow it down by grade

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

D VVS225,901 · 48rD VS115,693 · 49rE VVS213,448 · 48rD VVS112,778 · 48rE VS111,734 · 47rE VVS14,838 · 42rF VVS24,446 · 42rD IF3,970 · 44rF VS13,085 · 40rD VS22,634 · 41rE VS22,622 · 37rD FL1,620 · 30rF VVS11,119 · 38rG VS1933 · 34rG VVS2858 · 33rE IF828 · 40rF VS2629 · 35rE FL364 · 27rG VVS1184 · 32rG VS2141 · 28rH VVS2106 · 26rH VS1102 · 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 10,093 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 247%, about A$1,039.

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.

Where to Buy 1ct Lab Grown Heart Diamonds | Carat Hunter