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Carat Hunter · Where to buy diamonds

Where to buy a 3ct natural heart diamond

Every retailer in our index stocking this size and shape, 62 of them, across 3,625 current listings.

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

The market at this size and shape

Active listings

3,625

Retailers carrying

62

Median confirmed price

£17,580

Grade combinations

28

Certificate mix:GIA 2,942 · IGI 304 · HRD 102

What it actually costs

Half of these diamonds are listed between £10,784 and £26,717 (as of October 29, 2026).

Lower 10% £7,599Median £17,580Upper 10% £39,136

Middle half listed between £10,784 to £26,717

Certificated stones with a recently confirmed price only, 933 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

58%

Typical difference

£7,969

Stones compared

675

Across 675 stones of this size and shape carried by more than one retailer, the dearest listing sits 58% above the cheapest for the identical certificated diamond, a typical gap of £7,969. 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 Jewellers220 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  5. 5Aurelinne159 in stock
    United States·Founded 2021·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Aurelinne
  8. 8B2C Jewels122 in stock
    United States·Founded 2004·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 15 more retailers
  2. 12

    The Perfect Carat

    100 in stock
    US
    Terms not yet verified
  5. 15RockHer97 in stock
    United States·Founded 2016·40-day returns·Ships to Ireland
    Terms not yet verified
    Visit RockHer
  6. 16Allurez89 in stock
    United States·Founded 2010·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Allurez
  7. 17Ritani86 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Ritani
  10. 20Blue Nile77 in stock
    United States·Founded 1999·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Blue Nile

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.

17 of the 25 retailers ship to Ireland. 8 do not.

Narrow it down by grade

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

D VS2380 · 44rE VS2292 · 43rI VS2273 · 43rH VS2260 · 48rH VS1212 · 42rG VS2189 · 45rD VVS1178 · 44rD IF159 · 44rD VS1156 · 47rI VS1141 · 40rI VVS1137 · 40rE VS1132 · 40rG VS1128 · 39rI VVS292 · 30rD FL90 · 33rG VVS290 · 35rE VVS287 · 43rH VVS285 · 28rD VVS284 · 39rH VVS181 · 36rF VS272 · 35rF VVS168 · 34rE IF60 · 40rF VS156 · 38rG VVS140 · 23rF VVS230 · 14rI IF24 · 20rE VVS112 · 8r

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

  • Heart: a brilliant cut with a cleft and a pointed tip, classic and recognizable.
  • 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 675 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 58%, about £7,969.

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.