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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 24,167 current listings.

Updated November 5, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

24,167

Retailers carrying

49

Median confirmed price

HK$1,765

Grade combinations

25

Certificate mix:IGI 22,498 · GCAL 96 · GIA 1

What it actually costs

Half of these diamonds are listed between HK$1,208 and HK$2,699 (as of November 5, 2026).

Lower 10% HK$902Median HK$1,765Upper 10% HK$3,785

Middle half listed between HK$1,208 to HK$2,699

Certificated stones with a recently confirmed price only, 1,994 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Cheapest to dearest, median

376%

Cheapest to dearest, median in price

HK$5,914

Stones compared

1,487

Across 1,487 stones of this size and shape carried by more than one retailer, the dearest listing sits 376% above the cheapest for the identical certificated diamond, a typical gap of HK$5,914. 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.

  1. 1Rare Carat1,916 in stock
    United States·Founded 2016·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  4. 4Aurelinne1,450 in stock
    United States·Founded 2021·30-day returns·Ships to Hong Kong
    Terms not yet verified
    Visit Aurelinne
  6. 6

    The Perfect Carat

    1,315 in stock
    US
    Terms not yet verified
  8. 8NZ Jewellers1,202 in stock
    New Zealand·Founded 2006·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  10. 10B2C Jewels986 in stock
    United States·Founded 2004·30-day returns·Ships to Hong Kong
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 15 more retailers
  2. 12Yorxs856 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  6. 16Cape Diamonds618 in stock
    South Africa·Founded 2005·7-day returns·Ships to Hong Kong
    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.

12 of the 25 retailers ship to Hong Kong. 13 do not.

Narrow it down by grade

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

D VVS16,405 · 45rD VVS25,802 · 43rD VS12,716 · 38rE VVS22,154 · 39rE VVS11,740 · 43rE VS11,273 · 38rD IF1,273 · 40rF VVS2628 · 37rD VS2511 · 33rE IF412 · 38rE VS2341 · 29rF VS1243 · 36rG VVS2127 · 25rF VVS1104 · 37rF VS2102 · 26rG VS188 · 22rD FL52 · 21rH VVS247 · 23rG VS231 · 17rE FL27 · 19rG VVS121 · 18rI VVS217 · 13rH VS116 · 15rH VVS115 · 15rF IF13 · 13r

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

  • Princess: a square brilliant cut, second only to round in popularity.
  • 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 1,487 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 376%, about HK$5,914.

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?

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.