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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 20,444 current listings.

Updated November 5, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

20,444

Retailers carrying

70

Median confirmed price

$30,517

Grade combinations

32

Certificate mix:GIA 15,450 · IGI 2,423 · HRD 800

What it actually costs

Half of these diamonds are listed between $21,031 and $45,149 (as of November 5, 2026).

Lower 10% $15,439Median $30,517Upper 10% $66,897

Middle half listed between $21,031 to $45,149

Certificated stones with a recently confirmed price only, 6,218 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Cheapest to dearest, median

52%

Cheapest to dearest, median in price

$12,146

Stones compared

4,408

Across 4,408 stones of this size and shape carried by more than one retailer, the dearest listing sits 52% above the cheapest for the identical certificated diamond, a typical gap of $12,146. 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 Jewellers1,267 in stock
    New Zealand·Founded 2006·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  2. 2Yorxs1,107 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  6. 6Aurelinne986 in stock
    United States·Founded 2021·30-day returns·Ships to United States
    Terms not yet verified
    Visit Aurelinne
  7. 7Rare Carat894 in stock
    United States·Founded 2016·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  8. 8Allurez837 in stock
    United States·Founded 2010·30-day returns·Ships to United States
    Terms not yet verified
    Visit Allurez
  9. 9

    The Perfect Carat

    771 in stock
    US
    Terms not yet verified
Show 15 more retailers
  1. 11B2C Jewels583 in stock
    United States·Founded 2004·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  5. 15Moon Ocean459 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United States
    Terms not yet verified
    Visit Moon Ocean
  7. 17Blue Nile422 in stock
    United States·Founded 1999·30-day returns·Ships to United States
    Terms not yet verified
    Visit Blue Nile
  9. 19Cape Diamonds391 in stock
    South Africa·Founded 2005·7-day returns·Ships to United States
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  10. 20RockHer381 in stock
    United States·Founded 2016·40-day returns·Ships to United States
    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 United States. 5 do not.

Narrow it down by grade

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

I VS21,940 · 55rH VS21,809 · 62rI VS11,614 · 57rH VS11,204 · 59rH VVS2981 · 57rG VS1924 · 58rH VVS1900 · 57rF VS2892 · 58rI VVS2866 · 54rG VVS2770 · 56rF VS1761 · 57rG VS2737 · 57rE VS2665 · 56rD VS2613 · 57rG VVS1595 · 52rD VS1563 · 52rE VS1523 · 52rI VVS1482 · 46rD VVS2401 · 54rF VVS1396 · 48rE VVS2385 · 55rE VVS1372 · 48rF VVS2359 · 50rD VVS1331 · 54rD IF280 · 48rF IF228 · 48rI IF213 · 41rH IF207 · 42rG IF132 · 34rD FL129 · 35rE IF128 · 32rE FL41 · 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 4,408 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 52%, about $12,146.

Can I see retailers for one exact grade?

Yes. Each of the 32 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.