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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, 63 of them, across 33,719 live listings.

Updated September 20, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

33,719

Retailers carrying

63

Median active price

A$1,104

Grade combinations

36

Certificate mix:GIA 30,408 · IGI 669 · HRD 2

What it actually costs

Lower 10% A$659Median A$1,104Upper 10% A$2,003

Middle half sell between A$833 to A$1,393

Certificated stones with a live price only, 7,932 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

86%

Typical difference

A$892

Stones compared

4,579

Across 4,579 stones of this size and shape carried by more than one retailer, the dearest listing sits 86% above the cheapest for the identical certificated diamond, a typical gap of A$892. 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.

Show 15 more retailers
  1. 11

    GemTrove

    982 in stock
    AU
  14. 24

    MOH London

    512 in stock
    United Kingdom

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified September 2, 2026.

1 of the 25 retailers ship to Australia. 24 do not.

Narrow it down by grade

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

D VS12,265 · 56rD VVS11,775 · 51rE VS21,746 · 54rD VVS21,739 · 53rE VS11,729 · 51rE VVS11,643 · 51rD VS21,620 · 52rE VVS21,600 · 54rH VVS11,526 · 50rF VVS11,475 · 53rF VS11,474 · 53rF VS21,322 · 53rG VS11,300 · 51rG VVS11,242 · 53rF VVS21,103 · 53rH VVS21,082 · 51rG VS21,046 · 52rH VS1884 · 51rH VS2869 · 49rG VVS2861 · 50rI VVS1794 · 43rI VS1698 · 42rI VVS2685 · 44rI VS2599 · 44rF IF490 · 40rG IF440 · 48rD IF434 · 43rH IF427 · 45rE IF356 · 38rI IF275 · 33rD FL54 · 19rF FL38 · 11rE FL38 · 9rG FL34 · 6rI FL31 · 19rH FL25 · 5r

Stones at this spec now

Live 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 4,579 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 86%, about A$892.

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?

Live listings refresh daily. 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.