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Carat Hunter · Where to buy diamonds

Where to buy a 3ct natural marquise diamond

Every retailer in our index stocking this size and shape, 62 of them, across 2,192 current listings.

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

The market at this size and shape

Active listings

2,192

Retailers carrying

62

Median confirmed price

CA$51,058

Grade combinations

28

Certificate mix:GIA 1,745 · IGI 275 · HRD 32

What it actually costs

Half of these diamonds are listed between CA$33,830 and CA$66,352 (as of November 4, 2026).

Lower 10% CA$23,757Median CA$51,058Upper 10% CA$84,132

Middle half listed between CA$33,830 to CA$66,352

Certificated stones with a recently confirmed price only, 532 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

55%

Typical difference

CA$22,201

Stones compared

437

Across 437 stones of this size and shape carried by more than one retailer, the dearest listing sits 55% above the cheapest for the identical certificated diamond, a typical gap of CA$22,201. 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. 1NZ Jewellers130 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
  7. 7Yorxs86 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  9. 9

    The Perfect Carat

    76 in stock
    US
    Terms not yet verified
  10. 10Rare Carat74 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
Show 15 more retailers
  1. 11B2C Jewels67 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
  13. 23RockHer40 in stock
    United States·Founded 2016·40-day returns·Ships to Canada
    Terms not yet verified
    Visit RockHer

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.

19 of the 25 retailers ship to Canada. 6 do not.

Narrow it down by grade

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

D VS2174 · 46rD VS1150 · 48rF VS2139 · 47rI VS2116 · 30rI VVS2113 · 39rI VVS1111 · 37rG VS2110 · 40rH VS2106 · 35rE VS1103 · 46rI VS1102 · 27rF VS198 · 40rD FL86 · 26rH VVS181 · 41rG VVS176 · 38rD IF73 · 28rE VS270 · 37rF IF62 · 38rH VS160 · 28rG VS158 · 36rD VVS147 · 31rF VVS137 · 22rF VVS233 · 23rH VVS233 · 25rI IF32 · 23rG IF29 · 25rH IF26 · 17rD VVS222 · 18rE IF16 · 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.
  • Natural: mined diamonds with the certification, provenance and resale profile traditional buyers expect.

Frequently asked

How much do retailers differ on the same diamond?

Across 437 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 55%, about CA$22,201.

Can I see retailers for one exact grade?

Yes. Each of the 28 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.