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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct natural cushion diamond

Every retailer in our index stocking this size and shape, 64 of them, across 30,018 current listings.

Updated October 31, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

30,018

Retailers carrying

64

Median confirmed price

£489

Grade combinations

32

Certificate mix:GIA 24,033 · IGI 2,515 · AGS 15 · HRD 4

What it actually costs

Half of these diamonds are listed between £403 and £815 (as of October 31, 2026).

Lower 10% £335Median £489Upper 10% £1,709

Middle half listed between £403 to £815

Certificated stones with a recently confirmed price only, 8,471 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

116%

Typical difference

£623

Stones compared

4,130

Across 4,130 stones of this size and shape carried by more than one retailer, the dearest listing sits 116% above the cheapest for the identical certificated diamond, a typical gap of £623. 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. 2Rare Carat2,597 in stock
    United States·Founded 2016·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  6. 6Yorxs1,209 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  9. 9Allurez1,002 in stock
    United States·Founded 2010·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez
Show 15 more retailers
  1. 11Moon Ocean917 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean
  3. 13Ritani828 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Ritani
  4. 14Cape Diamonds689 in stock
    South Africa·Founded 2005·7-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  7. 17RockHer645 in stock
    United States·Founded 2016·40-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit RockHer
  8. 18ZCOVA616 in stock
    Malaysia·Founded 2015·Ships to United Kingdom
    Terms not yet verified
    Visit ZCOVA
  12. 22B2C Jewels510 in stock
    United States·Founded 2004·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels

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.

18 of the 25 retailers ship to United Kingdom. 7 do not.

Narrow it down by grade

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

E VS11,951 · 50rD VVS11,951 · 54rE VVS11,764 · 47rF VS11,683 · 44rD VS11,619 · 50rE VVS21,476 · 45rD VVS21,434 · 47rG VS11,400 · 46rE VS21,398 · 54rF VS21,340 · 51rF VVS11,336 · 50rF VVS21,292 · 49rG VVS11,251 · 47rG VVS21,193 · 45rD VS21,073 · 52rG VS21,031 · 52rH VVS11,027 · 48rH VS1892 · 49rH VVS2735 · 50rH VS2572 · 48rI VS1548 · 42rI VVS1474 · 36rD IF379 · 36rI VS2339 · 46rI VVS2335 · 42rE IF317 · 34rI IF316 · 38rF IF299 · 34rG IF287 · 36rH IF248 · 41rD FL32 · 7rE FL12 · 3r

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 4,130 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 116%, about £623.

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.