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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, 35 of them, across 4,449 current listings.

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

The market at this size and shape

Active listings

4,449

Retailers carrying

35

Median confirmed price

SGD 361

Grade combinations

16

Certificate mix:IGI 4,005 · GCAL 80 · GIA 17

What it actually costs

Half of these diamonds are listed between SGD 224 and SGD 607 (as of October 29, 2026).

Lower 10% SGD 192Median SGD 361Upper 10% SGD 1,083

Middle half listed between SGD 224 to SGD 607

Certificated stones with a recently confirmed price only, 426 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

464%

Typical difference

SGD 1,165

Stones compared

293

Across 293 stones of this size and shape carried by more than one retailer, the dearest listing sits 464% above the cheapest for the identical certificated diamond, a typical gap of SGD 1,165. 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.

  2. 2Rare Carat258 in stock
    United States·Founded 2016·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  3. 3Aurelinne247 in stock
    United States·Founded 2021·30-day returns·Ships to Singapore
    Terms not yet verified
    Visit Aurelinne
  4. 4NZ Jewellers235 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  7. 7

    The Perfect Carat

    215 in stock
    US
    Terms not yet verified
  10. 10Yorxs192 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
Show 15 more retailers
  3. 13B2C Jewels174 in stock
    United States·Founded 2004·30-day returns·Ships to Singapore
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
  6. 16Cape Diamonds130 in stock
    South Africa·Founded 2005·7-day returns·Ships to Singapore
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds

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.

14 of the 25 retailers ship to Singapore. 11 do not.

Narrow it down by grade

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

D VVS21,289 · 32rD VVS1851 · 30rD VS1717 · 32rE VVS2382 · 33rD FL262 · 23rD IF213 · 31rE VS1210 · 30rD VS2181 · 28rE VVS1138 · 29rF VS152 · 23rF VVS249 · 19rF VVS136 · 21rE IF25 · 24rE VS220 · 18rG VVS112 · 11rG VVS212 · 11r

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?

Across 293 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 464%, about SGD 1,165.

Can I see retailers for one exact grade?

Yes. Each of the 16 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.