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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, 66 of them, across 6,581 current listings.

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

The market at this size and shape

Active listings

6,581

Retailers carrying

66

Median confirmed price

€32,911

Grade combinations

52

Certificate mix:GIA 4,952 · IGI 878 · HRD 432

What it actually costs

Half of these diamonds are listed between €21,720 and €42,488 (as of November 6, 2026).

Lower 10% €15,469Median €32,911Upper 10% €54,073

Middle half listed between €21,720 to €42,488

Certificated stones with a recently confirmed price only, 539 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. 1NZ Jewellers407 in stock
    New Zealand·Founded 2006·EGL, GIA, HRD, IGI·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  2. 2Carbon Sparkle365 in stock
    United States·EGL, GIA, HRD, IGI·21-day returns·Ships to Ireland
    Terms read on the retailer’s own site, September 2, 2026
    Visit Carbon Sparkle
  3. 3Aurelinne337 in stock
    United States·Founded 2021·EGL, GIA, HRD, IGI·Ships to Ireland
    Terms not yet verified
    Visit Aurelinne
  6. 6Yorxs300 in stock
    Germany·Founded 2011·GIA, HRD, IGI
    Terms not yet verified
    Visit Yorxs
  7. 7Rare Carat282 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  8. 8

    The Perfect Carat

    280 in stock
    US·EGL, GIA, HRD, IGI
    Terms not yet verified
  9. 9B2C Jewels223 in stock
    United States·Founded 2004·GIA, HRD, IGI·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 56 more retailers
  14. 24Cape Diamonds94 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to Ireland
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  16. 26Allurez89 in stock
    United States·Founded 2010·GIA·Ships to Ireland
    Terms not yet verified
    Visit Allurez
  17. 27RockHer88 in stock
    United States·Founded 2016·GIA, IGI·Ships to Ireland
    Terms not yet verified
    Visit RockHer
  20. 30Zales85 in stock
    United States·Founded 1924·GIA
    Terms not yet verified
    Visit Zales
  22. 32Jared81 in stock
    United States·Founded 1993·GIA
    Terms not yet verified
    Visit Jared
  42. 52GemsNY13 in stock
    United States·Founded 1988·GIA, IGI·Ships to Ireland
    Terms not yet verified
    Visit GemsNY
  45. 55

    GemTrove

    11 in stock
    AU·GIA, HRD, IGI
    Terms not yet verified
  49. 59

    Lauren B

    3 in stock
    US
    Terms not yet verified
  50. 60

    Distinctive Gem

    2 in stock
    US
    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.

36 of the 61 retailers with shipping details ship to Ireland. 25 do not. 5 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 SI1488 · 53rG SI2482 · 46rD SI2441 · 47rJ SI2359 · 43rI SI2345 · 40rH SI2297 · 47rF SI2249 · 41rI SI1239 · 39rE SI2193 · 42rF SI1186 · 49rD VS2170 · 45rG SI1161 · 45rE SI1157 · 45rH SI1156 · 41rD VS1154 · 48rK SI2142 · 32rF VS2139 · 45rJ SI1138 · 40rG VS2115 · 40rI VS2114 · 30rF VS1111 · 40rI VVS1111 · 37rI VVS2110 · 39rH VS2107 · 35rE VS1104 · 47rI VS1102 · 27rK SI191 · 31rD FL86 · 26rH VVS179 · 41rE VS276 · 38rG VVS175 · 38rD IF71 · 28rG VS163 · 41rF IF62 · 38rH VS162 · 29rD VVS152 · 33rJ IF44 · 26rJ VS240 · 22rF VVS137 · 22rF VVS233 · 23rH VVS233 · 25rI IF32 · 23rJ VVS232 · 24rJ VS131 · 16rG IF29 · 25rK VS228 · 16rH IF26 · 17rK IF25 · 21rD VVS222 · 18rJ VVS122 · 21rE IF16 · 12rK VS111 · 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.
  • Natural: mined diamonds with the certification, provenance and resale profile traditional buyers expect.

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 52 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.