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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct lab-grown round diamond

Every retailer in our index stocking this size and shape, 59 of them, across 370,390 current listings.

Updated November 3, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

370,390

Retailers carrying

59

Median confirmed price

SGD 228

Grade combinations

32

Certificate mix:IGI 351,429 · GCAL 1,006 · GIA 834 · HRD 417 · AGS 6

What it actually costs

Half of these diamonds are listed between SGD 148 and SGD 386 (as of November 3, 2026).

Lower 10% SGD 119Median SGD 228Upper 10% SGD 532

Middle half listed between SGD 148 to SGD 386

Certificated stones with a recently confirmed price only, 40,224 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

440%

Typical difference

SGD 924

Stones compared

29,691

Across 29,691 stones of this size and shape carried by more than one retailer, the dearest listing sits 440% above the cheapest for the identical certificated diamond, a typical gap of SGD 924. 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.

  5. 5B2C Jewels24,419 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
  8. 8NZ Jewellers16,065 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
  9. 9Rare Carat15,097 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
  10. 10Yorxs15,047 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
Show 15 more retailers
  1. 11Aurelinne14,908 in stock
    United States·Founded 2021·30-day returns·Ships to Singapore
    Terms not yet verified
    Visit Aurelinne
  2. 12

    The Perfect Carat

    13,818 in stock
    US
    Terms not yet verified
  8. 18Cape Diamonds8,220 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
  14. 24GemsNY3,766 in stock
    United States·Founded 1988·30-day returns·Ships to Singapore
    Terms not yet verified
    Visit GemsNY

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 VVS2128,491 · 44rD VS162,952 · 43rD VVS160,151 · 46rE VVS227,607 · 42rE VS120,391 · 40rD IF15,260 · 40rE VVS114,843 · 41rD FL12,118 · 32rD VS211,118 · 41rE VS24,317 · 36rF VVS23,358 · 38rE IF2,286 · 41rF VS12,143 · 36rF VVS11,433 · 40rF VS2539 · 30rG VVS2462 · 33rE FL364 · 31rI VS2350 · 26rF IF333 · 36rH VVS2292 · 27rG VVS1285 · 28rI VS1265 · 23rG VS1206 · 29rG VS2134 · 23rH VS1133 · 26rI VVS2117 · 24rG IF111 · 26rI VVS181 · 22rH VS279 · 21rF FL61 · 21rH IF58 · 25rH VVS144 · 21r

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

  • Round: the most common cut, with the highest light return per carat.
  • 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 29,691 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 440%, about SGD 924.

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?

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.