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Carat Hunter · Where to buy diamonds

Where to buy a 3ct natural cushion diamond

Every retailer in our index stocking this size and shape, 66 of them, across 9,324 current listings.

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

The market at this size and shape

Active listings

9,324

Retailers carrying

66

Median confirmed price

£21,429

Grade combinations

31

Certificate mix:GIA 8,234 · HRD 179 · IGI 127 · AGS 2

What it actually costs

Half of these diamonds are listed between £13,881 and £29,021 (as of October 29, 2026).

Lower 10% £8,750Median £21,429Upper 10% £37,112

Middle half listed between £13,881 to £29,021

Certificated stones with a recently confirmed price only, 3,160 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

47%

Typical difference

£8,612

Stones compared

2,184

Across 2,184 stones of this size and shape carried by more than one retailer, the dearest listing sits 47% above the cheapest for the identical certificated diamond, a typical gap of £8,612. 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.

  2. 2Yorxs482 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  4. 4Rare Carat455 in stock
    United States·Founded 2016·30-day returns·Ships to Ireland
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  5. 5B2C Jewels357 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
  6. 6Blue Nile349 in stock
    United States·Founded 1999·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Blue Nile
Show 15 more retailers
  3. 13RockHer248 in stock
    United States·Founded 2016·40-day returns·Ships to Ireland
    Terms not yet verified
    Visit RockHer
  7. 17Allurez214 in stock
    United States·Founded 2010·30-day returns·Ships to Ireland
    Terms not yet verified
    Visit Allurez
  10. 20Zales205 in stock
    United States·Founded 1924·30-day returns
    Terms not yet verified
    Visit Zales
  11. 21Jared202 in stock
    United States·Founded 1993·30-day returns
    Terms not yet verified
    Visit Jared

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.

13 of the 25 retailers ship to Ireland. 12 do not.

Narrow it down by grade

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

H VS2858 · 53rI VS2809 · 49rI VS1750 · 48rG VS2624 · 51rG VS1605 · 55rD VS1557 · 55rH VS1532 · 53rD VS2478 · 48rF VS2478 · 49rE VS2469 · 51rF VS1405 · 49rE VS1402 · 48rG VVS2374 · 53rI VVS2265 · 45rH VVS1212 · 50rG VVS1178 · 41rF VVS2174 · 45rH VVS2152 · 38rF VVS1137 · 44rD VVS2137 · 41rE VVS2137 · 43rI VVS1130 · 36rD IF116 · 36rD VVS1110 · 38rE VVS165 · 27rI IF37 · 18rH IF36 · 23rE IF34 · 31rD FL21 · 15rG IF20 · 17rF IF20 · 18r

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

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • 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 2,184 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 47%, about £8,612.

Can I see retailers for one exact grade?

Yes. Each of the 31 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 Cushion Diamonds | Carat Hunter