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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct lab-grown asscher diamond

Every retailer in our index stocking this size and shape, 36 of them, across 4,582 current listings.

Updated November 6, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

4,582

Retailers carrying

36

Median confirmed price

£210

Grade combinations

17

Certificate mix:IGI 4,122 · GCAL 82 · GIA 17

What it actually costs

Half of these diamonds are listed between £130 and £358 (as of November 6, 2026).

Lower 10% £108Median £210Upper 10% £627

Middle half listed between £130 to £358

Certificated stones with a recently confirmed price only, 410 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

As of November 5, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 19% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Every retailer that stocks this spec

Ranked by active inventory count. Selection is mechanical, not editorial.

  2. 2Rare Carat274 in stock
    United States·Founded 2016·GIA, IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  4. 4NZ Jewellers254 in stock
    New Zealand·Founded 2006·IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  7. 7

    The Perfect Carat

    232 in stock
    US·IGI
    Terms not yet verified
  10. 10Yorxs188 in stock
    Germany·Founded 2011·GIA, IGI
    Terms not yet verified
    Visit Yorxs
Show 26 more retailers
  1. 11B2C Jewels183 in stock
    United States·Founded 2004·IGI·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  6. 16Cape Diamonds127 in stock
    South Africa·Founded 2005·GIA, IGI·7-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  20. 30GemsNY26 in stock
    United States·Founded 1988·GIA, IGI·Ships to United Kingdom
    Terms not yet verified
    Visit GemsNY
  24. 34Allurez5 in stock
    United States·Founded 2010·Ships to United Kingdom
    Terms not yet verified
    Visit Allurez

Stock counts reflect current listings. 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.

25 of the 35 retailers with shipping details ship to United Kingdom. 10 do not. 1 retailer has not published any shipping details.

Narrow it down by grade

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

D VVS21,323 · 33rD VVS1877 · 30rD VS1749 · 33rE VVS2378 · 34rD FL279 · 23rD IF219 · 31rE VS1218 · 32rD VS2193 · 28rE VVS1133 · 29rF VVS251 · 24rF VS150 · 23rF VVS132 · 21rE IF24 · 24rE VS220 · 18rG VVS112 · 11rG VVS212 · 11rD SI110 · 9r

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

  • Asscher: a square step cut with cropped corners.
  • 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?

As of November 5, 2026, the same certified diamond typically costs 44% more at a typical retailer than at the cheapest for lab-grown stones, and 19% more for natural ones (the median across stones listed by two or more retailers). Comparing shows you the cheapest of the retailers listing the same stone.

Can I see retailers for one exact grade?

Yes. Each of the 17 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.