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Carat Hunter · Where to buy diamonds

Where to buy a 0.75ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 54 of them, across 35,789 current listings.

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

The market at this size and shape

Active listings

35,789

Retailers carrying

54

Median confirmed price

CA$459

Grade combinations

36

Certificate mix:IGI 34,135 · GCAL 136 · GIA 28 · HRD 11

What it actually costs

Half of these diamonds are listed between CA$268 and CA$724 (as of November 6, 2026).

Lower 10% CA$223Median CA$459Upper 10% CA$922

Middle half listed between CA$268 to CA$724

Certificated stones with a recently confirmed price only, 3,011 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. 1Rare Carat2,285 in stock
    United States·Founded 2016·GCAL, GIA, IGI·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  2. 2Carbon Sparkle1,946 in stock
    United States·GCAL, GIA, HRD, IGI·21-day returns·Ships to Canada
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  3. 3NZ Jewellers1,934 in stock
    New Zealand·Founded 2006·GCAL, GIA, HRD, IGI·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  4. 4Aurelinne1,770 in stock
    United States·Founded 2021·GCAL, GIA, HRD, IGI·Ships to Canada
    Terms not yet verified
    Visit Aurelinne
  7. 7

    The Perfect Carat

    1,617 in stock
    US·GCAL, GIA, HRD, IGI
    Terms not yet verified
Show 44 more retailers
  1. 11Adiamor1,198 in stock
    United States·Founded 1999·GCAL, IGI·Ships to Canada
    Terms not yet verified
    Visit Adiamor
  2. 12B2C Jewels1,069 in stock
    United States·Founded 2004·GIA, IGI·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 19Cape Diamonds760 in stock
    South Africa·Founded 2005·IGI·7-day returns·Ships to Canada
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  10. 20Yorxs700 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
  17. 27

    GemTrove

    541 in stock
    AU·IGI
    Terms not yet verified
  22. 32Jared392 in stock
    United States·Founded 1993·GIA, IGI
    Terms not yet verified
    Visit Jared
  24. 34Zales388 in stock
    United States·Founded 1924·GIA, IGI
    Terms not yet verified
    Visit Zales
  25. 35GemsNY348 in stock
    United States·Founded 1988·GCAL, IGI·Ships to Canada
    Terms not yet verified
    Visit GemsNY
  29. 39Allurez236 in stock
    United States·Founded 2010·IGI·Ships to Canada
    Terms not yet verified
    Visit Allurez
  40. 50ZCOVA7 in stock
    Malaysia·Founded 2015·IGI·Ships to Canada
    Terms not yet verified
    Visit ZCOVA
  42. 5225karats2 in stock
    United States·Founded 2008·IGI·60-day returns·Ships to Canada
    Terms read on the retailer’s own site, June 15, 2026
    Visit 25karats

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.

32 of the 51 retailers with shipping details ship to Canada. 19 do not. 3 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 VVS28,958 · 50rD VVS16,811 · 47rD VS16,372 · 48rE VVS22,700 · 49rE VS11,960 · 49rE VVS11,718 · 47rD VS21,239 · 44rD IF1,064 · 43rE VS2705 · 40rF VS1626 · 40rF VVS2623 · 44rD FL498 · 34rG VVS2272 · 29rF VS2248 · 32rG VS1220 · 31rF VVS1216 · 42rE IF212 · 37rH VS1198 · 26rG VS2167 · 25rE SI1152 · 29rH VS2152 · 19rH VVS2130 · 22rD SI1128 · 20rH SI162 · 12rE FL56 · 28rI VS154 · 18rI VS243 · 15rF SI141 · 20rG SI141 · 7rI VVS217 · 13rJ VVS216 · 16rF IF15 · 13rG VVS114 · 12rE SI212 · 7rF SI211 · 6rI SI111 · 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

  • 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 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 36 color 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.