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Carat Hunter · Where to buy diamonds

Where to buy a 2ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 66 of them, across 316,612 current listings.

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

The market at this size and shape

Active listings

316,612

Retailers carrying

66

Median confirmed price

A$611

Grade combinations

37

Certificate mix:IGI 305,060 · GIA 1,595 · GCAL 1,460 · HRD 12

What it actually costs

Half of these diamonds are listed between A$563 and A$1,148 (as of November 6, 2026).

Lower 10% A$520Median A$611Upper 10% A$2,508

Middle half listed between A$563 to A$1,148

Certificated stones with a recently confirmed price only, 36,625 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 5, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 19% 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.

  4. 4Rare Carat15,659 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. 6NZ Jewellers12,463 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
  8. 8Carbon Sparkle12,173 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
Show 56 more retailers
  1. 11

    The Perfect Carat

    10,332 in stock
    US·GCAL, GIA, IGI
    Terms not yet verified
  2. 12Aurelinne10,218 in stock
    United States·Founded 2021·GCAL, GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  3. 13Adiamor10,167 in stock
    United States·Founded 1999·GCAL, GIA, IGI
    Terms not yet verified
    Visit Adiamor
  5. 15B2C Jewels8,665 in stock
    United States·Founded 2004·GIA, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  7. 17RockHer8,150 in stock
    United States·Founded 2016·GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit RockHer
  11. 21Cape Diamonds6,305 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
  13. 23Yorxs5,483 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  20. 30GemsNY4,688 in stock
    United States·Founded 1988·GCAL, GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit GemsNY
  28. 38Blue Nile783 in stock
    United States·Founded 1999·GCAL, GIA, IGI·Ships to Australia
    Terms not yet verified
    Visit Blue Nile
  29. 39

    GemTrove

    707 in stock
    AU·GCAL, GIA, IGI·Ships to Australia
    Terms not yet verified
  34. 44Allurez339 in stock
    United States·Founded 2010·IGI·Ships to Australia
    Terms not yet verified
    Visit Allurez
  38. 48ZCOVA119 in stock
    Malaysia·Founded 2015·IGI·Ships to Australia
    Terms not yet verified
    Visit ZCOVA
  40. 5025karats65 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
  42. 52Jared58 in stock
    United States·Founded 1993·GCAL, GIA, IGI
    Terms not yet verified
    Visit Jared
  43. 53Zales53 in stock
    United States·Founded 1924·GCAL, GIA, IGI
    Terms not yet verified
    Visit Zales
  49. 59

    Whiteflash

    7 in stock
    US·IGI
    Terms not yet verified
  50. 60VRAI5 in stock
    United States·Founded 2014·Ships to Australia
    Terms not yet verified
    Visit VRAI
  51. 61

    Diamond Culture

    2 in stock
    HK·IGI
    Terms not yet verified
  54. 64

    Lauren B

    2 in stock
    US
    Terms not yet verified
  55. 65

    Diamovida

    1 in stock
    CA·IGI
    Terms not yet verified
  56. 66

    Good Old Gold

    1 in stock
    US·IGI
    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.

39 of the 59 retailers with shipping details ship to Australia. 20 do not. 7 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 VVS263,517 · 60rE VS146,125 · 57rD VVS234,248 · 59rF VVS232,231 · 58rF VS121,280 · 49rD VVS120,847 · 56rE VVS119,400 · 54rD VS116,251 · 56rE VS211,394 · 47rD IF9,638 · 49rD FL9,052 · 39rF VVS16,328 · 48rF VS25,319 · 44rG VVS25,315 · 42rD VS24,301 · 44rG VS13,876 · 49rE IF2,108 · 42rG VVS1936 · 40rG VS2838 · 35rE SI1651 · 26rE FL613 · 37rF IF514 · 36rH VVS2424 · 35rH VS1371 · 32rF SI1279 · 28rD SI1246 · 27rH VS2142 · 27rG IF78 · 30rH VVS156 · 8rF FL37 · 25rE SI228 · 18rG SI128 · 12rI VS128 · 17rI SI124 · 13rH SI117 · 13rI VVS217 · 16rK VVS212 · 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

  • Marquise: a pointed-end ellipse that faces up large for its carat.
  • 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 5, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 19% 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 37 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.