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Carat Hunter · Where to buy diamonds

Where to buy a 3ct natural round diamond

Every retailer in our index stocking this size and shape, 70 of them, across 19,887 current listings.

Updated October 29, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

19,887

Retailers carrying

70

Median confirmed price

A$43,774

Grade combinations

32

Certificate mix:GIA 15,100 · IGI 2,337 · HRD 733

What it actually costs

Half of these diamonds are listed between A$30,294 and A$65,112 (as of October 29, 2026).

Lower 10% A$22,161Median A$43,774Upper 10% A$96,267

Middle half listed between A$30,294 to A$65,112

Certificated stones with a recently confirmed price only, 6,108 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

51%

Typical difference

A$17,147

Stones compared

4,233

Across 4,233 stones of this size and shape carried by more than one retailer, the dearest listing sits 51% above the cheapest for the identical certificated diamond, a typical gap of A$17,147. 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 Jewellers1,264 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  2. 2Yorxs1,109 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  5. 5Aurelinne973 in stock
    United States·Founded 2021·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  7. 7Rare Carat881 in stock
    United States·Founded 2016·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  8. 8Allurez786 in stock
    United States·Founded 2010·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Allurez
  10. 10

    The Perfect Carat

    640 in stock
    US
    Terms not yet verified
Show 15 more retailers
  1. 11B2C Jewels576 in stock
    United States·Founded 2004·30-day returns·Ships to Australia
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  7. 17Blue Nile402 in stock
    United States·Founded 1999·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Blue Nile
  9. 19Cape Diamonds387 in stock
    South Africa·Founded 2005·7-day returns·Ships to Australia
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  10. 20RockHer366 in stock
    United States·Founded 2016·40-day returns·Ships to Australia
    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.

20 of the 25 retailers ship to Australia. 5 do not.

Narrow it down by grade

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

I VS21,878 · 56rH VS21,716 · 63rI VS11,515 · 57rH VS11,124 · 59rG VS1975 · 60rH VVS2974 · 58rF VS2852 · 57rH VVS1837 · 57rI VVS2831 · 55rF VS1764 · 60rG VVS2740 · 57rG VS2722 · 58rE VS2693 · 55rD VS2595 · 57rG VVS1591 · 52rD VS1588 · 53rE VS1506 · 53rI VVS1450 · 47rF VVS1398 · 48rE VVS1380 · 50rE VVS2376 · 55rF VVS2355 · 51rD VVS2355 · 55rD VVS1326 · 54rD IF274 · 48rF IF238 · 47rI IF198 · 42rH IF193 · 43rG IF141 · 37rD FL132 · 36rE IF128 · 32rE FL37 · 29r

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

  • Round: the most common cut, with the highest light return per 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 4,233 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 51%, about A$17,147.

Can I see retailers for one exact grade?

Yes. Each of the 32 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.

Where to Buy 3ct Natural Round Diamonds | Carat Hunter