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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct natural round diamond

Every retailer in our index stocking this size and shape, 75 of them, across 745,556 live listings.

Updated September 19, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

745,556

Retailers carrying

75

Median active price

£645

Grade combinations

36

Certificate mix:GIA 597,046 · IGI 102,721 · HRD 13,975 · AGS 15

What it actually costs

Lower 10% £379Median £645Upper 10% £1,133

Middle half sell between £491 to £868

Certificated stones with a live price only, 242,860 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

46%

Typical difference

£261

Stones compared

132,666

Across 132,666 stones of this size and shape carried by more than one retailer, the dearest listing sits 46% above the cheapest for the identical certificated diamond, a typical gap of £261. 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
  8. 18

    GemTrove

    14,054 in stock
    AU

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified June 15, 2026.

6 of the 25 retailers ship to United Kingdom. 19 do not.

Narrow it down by grade

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

D VVS160,461 · 61rD VVS237,064 · 62rE VVS135,220 · 63rF VVS133,187 · 61rD VS130,096 · 60rG VS229,854 · 65rF VS229,520 · 65rG VVS129,309 · 60rG VS127,293 · 61rH VVS126,921 · 59rH VS226,020 · 63rH VS125,953 · 61rF VS125,300 · 66rD VS224,733 · 64rH VVS224,599 · 61rE VS223,810 · 65rE VS123,799 · 64rI VVS122,909 · 53rF VVS221,364 · 64rG VVS221,198 · 63rE VVS221,116 · 64rD IF21,107 · 61rI VS119,808 · 56rI VS219,217 · 56rI VVS218,393 · 55rF IF15,315 · 56rG IF14,570 · 59rE IF14,537 · 58rH IF10,421 · 54rI IF6,897 · 50rD FL3,633 · 39rE FL673 · 30rF FL545 · 23rG FL516 · 18rH FL133 · 15rI FL65 · 12r

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

  • Round: the most common cut, with the highest light return per carat.
  • 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 132,666 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 46%, about £261.

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.

Where to Buy 0.5ct Natural Round Diamonds | Carat Hunter