Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown marquise diamond

Every retailer in our index stocking this size and shape, 60 of them, across 137,586 current listings.

Updated November 4, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

137,586

Retailers carrying

60

Median confirmed price

CA$550

Grade combinations

29

Certificate mix:IGI 133,217 · GCAL 785 · GIA 304 · HRD 9

What it actually costs

Half of these diamonds are listed between CA$375 and CA$935 (as of November 4, 2026).

Lower 10% CA$354Median CA$550Upper 10% CA$1,672

Middle half listed between CA$375 to CA$935

Certificated stones with a recently confirmed price only, 11,801 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

350%

Typical difference

CA$1,644

Stones compared

9,365

Across 9,365 stones of this size and shape carried by more than one retailer, the dearest listing sits 350% above the cheapest for the identical certificated diamond, a typical gap of CA$1,644. 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.

  1. 1Rare Carat9,287 in stock
    United States·Founded 2016·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  2. 7NZ Jewellers5,671 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
Show 15 more retailers
  1. 12

    The Perfect Carat

    4,758 in stock
    US
    Terms not yet verified
  2. 14Aurelinne4,317 in stock
    United States·Founded 2021·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Aurelinne
  3. 15Adiamor4,307 in stock
    United States·Founded 1999·30-day returns·Ships to Canada
    Terms not yet verified
    Visit Adiamor
  4. 16B2C Jewels4,275 in stock
    United States·Founded 2004·30-day returns·Ships to Canada
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  5. 18GemsNY3,150 in stock
    United States·Founded 1988·30-day returns·Ships to Canada
    Terms not yet verified
    Visit GemsNY
  6. 22Cape Diamonds2,778 in stock
    South Africa·Founded 2005·7-day returns·Ships to Canada
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds

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.

18 of the 25 retailers ship to Canada. 7 do not.

Narrow it down by grade

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

E VVS224,916 · 57rD VVS217,855 · 57rE VS116,249 · 54rD VVS112,653 · 55rD VS110,729 · 53rF VVS29,425 · 54rD FL8,224 · 42rE VVS17,754 · 52rD IF7,701 · 48rF VS16,143 · 50rE VS25,493 · 44rD VS22,333 · 49rF VVS11,620 · 50rE IF1,452 · 45rG VVS21,414 · 43rF VS21,341 · 41rG VS1808 · 39rE FL614 · 34rF IF170 · 31rG VS2163 · 33rH VS1147 · 23rG IF104 · 29rG VVS186 · 28rH VVS266 · 17rH VS240 · 13rH VVS129 · 6rI VS219 · 15rI VVS215 · 6rF FL14 · 14r

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?

Across 9,365 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 350%, about CA$1,644.

Can I see retailers for one exact grade?

Yes. Each of the 29 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.