Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown cushion diamond

Every retailer in our index stocking this size and shape, 60 of them, across 20,767 current listings.

Updated November 7, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

20,767

Retailers carrying

60

Median confirmed price

A$406

Grade combinations

33

Certificate mix:IGI 20,119 · GCAL 129 · GIA 28 · HRD 1

What it actually costs

Half of these diamonds are listed between A$310 and A$678 (as of November 7, 2026).

Lower 10% A$246Median A$406Upper 10% A$1,077

Middle half listed between A$310 to A$678

Certificated stones with a recently confirmed price only, 2,520 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 7, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 21% 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. 3Rare Carat1,259 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  2. 5B2C Jewels1,213 in stock
    United States·Founded 2004·IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  3. 8Yorxs819 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
Show 50 more retailers
  1. 15Cape Diamonds528 in stock
    South Africa·Founded 2005·IGI·7-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  2. 17GemsNY416 in stock
    United States·Founded 1988·IGI·Ships to Australia
    Terms not yet verified
    Visit GemsNY
  3. 19

    Steven Stone

    390 in stock
    UK·IGI
    Terms not yet verified
  4. 26

    Luvansh

    295 in stock
    US
    Terms not yet verified
  5. 34Zales211 in stock
    United States·Founded 1924·GIA, IGI
    Terms not yet verified
    Visit Zales
  6. 35Allurez190 in stock
    United States·Founded 2010·IGI·Ships to Australia
    Terms not yet verified
    Visit Allurez
  7. 36Jared188 in stock
    United States·Founded 1993·GIA, IGI
    Terms not yet verified
    Visit Jared
  8. 38

    SJ Gems

    123 in stock
    ZA·IGI
    Terms not yet verified
  9. 39

    Liori Diamonds

    113 in stock
    US·IGI
    Terms not yet verified
  10. 43

    deBebians

    85 in stock
    US·IGI
    Terms not yet verified
  11. 45

    SkyGem

    62 in stock
    AU·IGI·Ships to Australia
    Terms not yet verified
  12. 46

    Keyzar

    55 in stock
    US·IGI
    Terms not yet verified
  13. 47

    Reeds

    39 in stock
    US·IGI
    Terms not yet verified
  14. 51

    GemTrove

    8 in stock
    AU·IGI·Ships to Australia
    Terms not yet verified
  15. 53ZCOVA8 in stock
    Malaysia·Founded 2015·IGI·Ships to Australia
    Terms not yet verified
    Visit ZCOVA
  16. 56NZ Jewellers6 in stock
    New Zealand·Founded 2006·IGI·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  17. 57

    The Perfect Carat

    6 in stock
    US·IGI
    Terms not yet verified
  18. 60

    USA Jewels

    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.

34 of the 50 retailers with shipping details ship to Australia. 16 do not. 10 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.

D VVS24,512 · 47rD VS12,780 · 46rE VS12,477 · 46rD VVS12,338 · 43rE VVS22,143 · 42rF VS1884 · 43rE VS2756 · 37rD VS2745 · 40rE VVS1704 · 41rD IF654 · 34rF VVS2540 · 39rG VS1362 · 34rF VS2330 · 35rG VVS2245 · 37rD FL199 · 26rD SI1181 · 33rE IF180 · 37rE SI1148 · 23rG VS2127 · 21rF VVS193 · 35rF IF73 · 31rI VS162 · 19rH VS146 · 21rF SI133 · 16rD SI220 · 8rE SI219 · 10rG VVS118 · 14rJ VS117 · 12rH VVS214 · 10rJ VVS212 · 12rF SI210 · 10rK VS210 · 10rK VVS110 · 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

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • 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 7, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 21% 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 33 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.