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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown princess diamond

Every retailer in our index stocking this size and shape, 62 of them, across 98,996 current listings.

Updated November 6, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

98,996

Retailers carrying

62

Median confirmed price

A$449

Grade combinations

44

Certificate mix:IGI 89,831 · GCAL 2,990 · GIA 1,561 · AGS 11 · HRD 8

What it actually costs

Half of these diamonds are listed between A$350 and A$837 (as of November 6, 2026).

Lower 10% A$316Median A$449Upper 10% A$2,115

Middle half listed between A$350 to A$837

Certificated stones with a recently confirmed price only, 7,586 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

  1. 1Carbon Sparkle5,767 in stock
    United States·GCAL, GIA, IGI·21-day returns·Ships to Australia
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  2. 2

    The Perfect Carat

    5,457 in stock
    US·GCAL, GIA, IGI
    Terms not yet verified
  4. 4NZ Jewellers5,019 in stock
    New Zealand·Founded 2006·GCAL, GIA, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  5. 5Rare Carat5,019 in stock
    United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6Aurelinne4,536 in stock
    United States·Founded 2021·GCAL, GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  9. 9Adiamor3,677 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
Show 52 more retailers
  1. 11B2C Jewels3,627 in stock
    United States·Founded 2004·AGS, GIA, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 19Yorxs2,631 in stock
    Germany·Founded 2011·AGS, GIA, IGI
    Terms not yet verified
    Visit Yorxs
  11. 21Cape Diamonds2,233 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  18. 28RockHer1,046 in stock
    United States·Founded 2016·GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit RockHer
  23. 33Blue Nile624 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit Blue Nile
  27. 37GemsNY391 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit GemsNY
  29. 39Allurez367 in stock
    United States·Founded 2010·IGI·Ships to Australia
    Terms not yet verified
    Visit Allurez
  30. 40Jared362 in stock
    United States·Founded 1993·AGS, GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  33. 43Zales327 in stock
    United States·Founded 1924·AGS, GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  42. 52ZCOVA49 in stock
    Malaysia·Founded 2015·IGI·Ships to Australia
    Terms not yet verified
    Visit ZCOVA
  43. 5325karats43 in stock
    United States·Founded 2008·IGI·60-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit 25karats
  46. 56VRAI9 in stock
    United States·Founded 2014·Ships to Australia
    Terms not yet verified
    Visit VRAI
  48. 58

    Whiteflash

    2 in stock
    US·GIA
    Terms not yet verified
  49. 59

    GemTrove

    1 in stock
    AU·IGI·Ships to Australia
    Terms not yet verified
  50. 60

    Lauren B

    1 in stock
    US
    Terms not yet verified

Stock counts reflect current listings. 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.

38 of the 58 retailers with shipping details ship to Australia. 20 do not. 4 retailers have not published any shipping details.

Narrow it down by grade

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

E VVS220,021 · 55rE VS116,725 · 57rD VVS214,733 · 56rD VS112,328 · 57rF VVS25,275 · 54rD VVS14,733 · 52rE VVS14,270 · 52rF VS14,050 · 54rE VS22,887 · 51rG VS12,054 · 49rG VVS21,903 · 47rD VS21,830 · 43rF VS21,289 · 47rF VVS11,279 · 49rD IF1,051 · 46rG VS2828 · 38rD FL593 · 36rE SI1419 · 35rE IF386 · 42rH VS1358 · 37rF SI1264 · 37rH VVS2261 · 33rG VVS1249 · 31rD SI1188 · 33rH VS2180 · 32rG SI1111 · 27rE FL66 · 24rH SI163 · 21rI SI162 · 15rF IF54 · 28rK VS247 · 15rI VS244 · 17rJ VS243 · 15rF SI241 · 27rI VVS239 · 20rE SI233 · 18rF FL32 · 22rG SI232 · 19rI VS130 · 16rD SI228 · 22rJ SI127 · 15rH VVS125 · 6rJ VS120 · 17rK SI110 · 10r

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

  • Princess: a square brilliant cut, second only to round in popularity.
  • 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?

As of November 6, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 20% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Can I see retailers for one exact grade?

Yes. Each of the 44 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.