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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct natural radiant diamond

Every retailer in our index stocking this size and shape, 64 of them, across 29,482 current listings.

Updated November 4, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

29,482

Retailers carrying

64

Median confirmed price

A$1,083

Grade combinations

36

Certificate mix:GIA 25,831 · IGI 804 · HRD 4

What it actually costs

Half of these diamonds are listed between A$860 and A$1,611 (as of November 4, 2026).

Lower 10% A$684Median A$1,083Upper 10% A$2,789

Middle half listed between A$860 to A$1,611

Certificated stones with a recently confirmed price only, 4,798 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

139%

Typical difference

A$1,413

Stones compared

3,064

Across 3,064 stones of this size and shape carried by more than one retailer, the dearest listing sits 139% above the cheapest for the identical certificated diamond, a typical gap of A$1,413. 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. 1Rare Carat3,245 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
  5. 5NZ Jewellers1,129 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
  7. 7ZCOVA984 in stock
    Malaysia·Founded 2015·Ships to Australia
    Terms not yet verified
    Visit ZCOVA
  8. 8

    GemTrove

    982 in stock
    AU
    Terms not yet verified
  10. 10Allurez917 in stock
    United States·Founded 2010·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Allurez
Show 15 more retailers
  4. 14Aurelinne769 in stock
    United States·Founded 2021·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  5. 15

    The Perfect Carat

    765 in stock
    US
    Terms not yet verified
  9. 19Yorxs719 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  13. 23B2C Jewels556 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
  15. 25Cape Diamonds543 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

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 Australia. 8 do not.

Narrow it down by grade

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

D VS11,820 · 57rE VS21,513 · 52rD VVS21,503 · 54rH VVS11,497 · 51rE VVS11,431 · 54rD VVS11,408 · 55rF VS11,329 · 55rE VS11,327 · 52rG VVS11,306 · 55rE VVS21,291 · 51rF VVS21,204 · 54rF VVS11,201 · 57rD VS21,172 · 50rG VS11,123 · 52rF VS21,049 · 54rH VVS21,045 · 52rG VS2878 · 51rG VVS2800 · 53rH VS1796 · 53rI VVS1791 · 44rI VS1686 · 45rH VS2678 · 49rI VVS2596 · 41rG IF525 · 48rI VS2499 · 46rD IF448 · 47rH IF399 · 49rF IF377 · 41rE IF312 · 40rI IF295 · 36rD FL39 · 24rI FL32 · 20rG FL32 · 7rE FL30 · 8rF FL29 · 10rH FL21 · 6r

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

  • Radiant: a rectangular brilliant cut that combines the emerald outline with round-style faceting.
  • 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 3,064 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 139%, about A$1,413.

Can I see retailers for one exact grade?

Yes. Each of the 36 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.