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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, 63 of them, across 2,182 current listings.

Updated November 3, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

2,182

Retailers carrying

63

Median confirmed price

HK$287,507

Grade combinations

28

Certificate mix:GIA 1,738 · IGI 278 · HRD 32

What it actually costs

Half of these diamonds are listed between HK$190,935 and HK$371,266 (as of November 3, 2026).

Lower 10% HK$134,906Median HK$287,507Upper 10% HK$473,702

Middle half listed between HK$190,935 to HK$371,266

Certificated stones with a recently confirmed price only, 523 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

55%

Typical difference

HK$125,000

Stones compared

429

Across 429 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 HK$125,000. 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 Jewellers131 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  2. 2Aurelinne109 in stock
    United States·Founded 2021·30-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit Aurelinne
  7. 7Yorxs83 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 Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
Show 15 more retailers
  1. 11B2C Jewels71 in stock
    United States·Founded 2004·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  9. 19Blue Nile45 in stock
    United States·Founded 1999·30-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit Blue Nile
  10. 20RockHer44 in stock
    United States·Founded 2016·40-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit RockHer
  11. 21Cape Diamonds44 in stock
    South Africa·Founded 2005·7-day returns·Ships to Hong Kong
    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.

19 of the 25 retailers ship to Hong Kong. 6 do not.

Narrow it down by grade

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

D VS2183 · 48rD VS1149 · 47rF VS2133 · 47rI VS2117 · 29rI VVS2116 · 40rI VVS1112 · 37rH VS2107 · 35rG VS2105 · 40rI VS1102 · 27rE VS197 · 45rF VS197 · 39rD FL86 · 26rH VVS181 · 40rG VVS177 · 38rD IF71 · 28rE VS269 · 37rF IF63 · 38rH VS160 · 28rG VS150 · 35rD VVS150 · 33rF VVS137 · 22rH VVS234 · 25rF VVS233 · 23rI IF31 · 22rG IF28 · 25rH IF26 · 17rD VVS222 · 18rE IF17 · 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 429 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 55%, about HK$125,000.

Can I see retailers for one exact grade?

Yes. Each of the 28 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.