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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct lab-grown oval diamond

Every retailer in our index stocking this size and shape, 51 of them, across 91,852 current listings.

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

The market at this size and shape

Active listings

91,852

Retailers carrying

51

Median confirmed price

A$326

Grade combinations

30

Certificate mix:IGI 88,489 · GCAL 41 · HRD 37 · GIA 34

What it actually costs

Half of these diamonds are listed between A$226 and A$437 (as of October 29, 2026).

Lower 10% A$167Median A$326Upper 10% A$602

Middle half listed between A$226 to A$437

Certificated stones with a recently confirmed price only, 9,571 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

323%

Typical difference

A$969

Stones compared

7,168

Across 7,168 stones of this size and shape carried by more than one retailer, the dearest listing sits 323% above the cheapest for the identical certificated diamond, a typical gap of A$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.

  3. 3Rare Carat5,800 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
  6. 6Aurelinne4,866 in stock
    United States·Founded 2021·30-day returns·Ships to Australia
    Terms not yet verified
    Visit Aurelinne
  7. 7B2C Jewels4,846 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
  8. 8Yorxs4,477 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  10. 10NZ Jewellers4,140 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
Show 15 more retailers
  2. 12

    The Perfect Carat

    3,565 in stock
    US
    Terms not yet verified
  6. 16Cape Diamonds2,427 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
  10. 20Adiamor1,646 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor

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 Australia. 7 do not.

Narrow it down by grade

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

D VVS226,023 · 44rD VVS123,910 · 44rD VS112,741 · 43rD IF7,884 · 38rE VVS25,455 · 39rE VS13,810 · 35rD VS22,884 · 31rE VVS12,445 · 43rE VS21,296 · 31rF VVS2922 · 38rE IF762 · 36rF VS1723 · 33rD FL640 · 29rF VS2340 · 27rH VS1337 · 25rI VS2259 · 18rI VS1216 · 18rG VS1210 · 27rF VVS1172 · 32rG VVS2147 · 27rF IF133 · 31rH VS297 · 22rH VVS285 · 26rG VS282 · 22rG VVS170 · 28rE FL65 · 22rI VVS256 · 14rH VVS149 · 26rG IF19 · 12rI VVS116 · 16r

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

  • Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
  • Lab-grown: chemically identical to natural diamonds, typically at least 90% less than a comparable natural cohort from 1 carat up.

Frequently asked

How much do retailers differ on the same diamond?

Across 7,168 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 323%, about A$969.

Can I see retailers for one exact grade?

Yes. Each of the 30 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 0.5ct Lab Grown Oval Diamonds | Carat Hunter