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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 74,650 live listings.

Updated September 15, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

74,650

Retailers carrying

51

Median active price

£195

Grade combinations

32

Certificate mix:IGI 68,099 · GIA 1,753 · GCAL 47 · HRD 37

What it actually costs

Lower 10% £94Median £195Upper 10% £529

Middle half sell between £137 to £288

Certificated stones with a live price only, 15,610 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

134%

Typical difference

£230

Stones compared

9,824

Across 9,824 stones of this size and shape carried by more than one retailer, the dearest listing sits 134% above the cheapest for the identical certificated diamond, a typical gap of £230. 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

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

Narrow it down by grade

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

D VVS220,677 · 44rD VVS119,923 · 40rD VS19,485 · 39rD IF5,096 · 35rE VVS24,680 · 40rE VS13,306 · 38rE VVS12,478 · 39rD VS22,135 · 32rE VS21,168 · 28rF VVS2916 · 34rF VS1818 · 31rE IF508 · 34rF VS2460 · 25rH VS1330 · 21rG VS1326 · 26rI VS2246 · 16rF VVS1237 · 32rG VS2232 · 20rD FL227 · 22rG VVS2226 · 22rI VS1213 · 21rH VS2170 · 20rH VVS2165 · 24rI VVS2111 · 13rH VVS1109 · 24rG VVS1106 · 20rI VVS191 · 17rF IF91 · 25rG IF57 · 14rH IF27 · 5rI IF25 · 7rE FL11 · 11r

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

  • Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
  • Lab-grown: chemically identical to natural diamonds, typically 60% to 80% less than a comparable natural cohort.

Frequently asked

How much do retailers differ on the same diamond?

Across 9,824 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 134%, about £230.

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?

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.