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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct lab-grown princess diamond

Every retailer in our index stocking this size and shape, 49 of them, across 20,358 live listings.

Updated September 14, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

20,358

Retailers carrying

49

Median active price

SGD 339

Grade combinations

25

Certificate mix:IGI 19,042 · GIA 411 · GCAL 40

What it actually costs

Lower 10% SGD 149Median SGD 339Upper 10% SGD 968

Middle half sell between SGD 255 to SGD 554

Certificated stones with a live price only, 3,568 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

174%

Typical difference

SGD 523

Stones compared

2,253

Across 2,253 stones of this size and shape carried by more than one retailer, the dearest listing sits 174% above the cheapest for the identical certificated diamond, a typical gap of SGD 523. 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 VVS25,632 · 42rD VVS15,217 · 34rD VS12,376 · 32rE VVS21,805 · 32rE VVS11,552 · 34rE VS11,125 · 30rD IF671 · 29rF VVS2470 · 25rD VS2409 · 29rE IF231 · 28rE VS2192 · 26rF VS1129 · 25rG VVS2104 · 19rF VS283 · 17rF VVS178 · 25rG VS164 · 15rH VVS234 · 17rG VS233 · 13rH VS122 · 14rH VS221 · 6rG VVS121 · 14rH VVS118 · 3rD FL15 · 11rI VVS214 · 8rH IF11 · 3r

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

  • Princess: a square brilliant cut, second only to round in popularity.
  • 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 2,253 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 174%, about SGD 523.

Can I see retailers for one exact grade?

Yes. Each of the 25 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.