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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, 48 of them, across 24,673 current listings.

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

The market at this size and shape

Active listings

24,673

Retailers carrying

48

Median confirmed price

$231

Grade combinations

25

Certificate mix:IGI 23,160 · GCAL 100 · GIA 1

What it actually costs

Half of these diamonds are listed between $156 and $345 (as of November 3, 2026).

Lower 10% $115Median $231Upper 10% $480

Middle half listed between $156 to $345

Certificated stones with a recently confirmed price only, 2,025 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

368%

Typical difference

$756

Stones compared

1,498

Across 1,498 stones of this size and shape carried by more than one retailer, the dearest listing sits 368% above the cheapest for the identical certificated diamond, a typical gap of $756. 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 Carat1,914 in stock
    United States·Founded 2016·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  4. 4Aurelinne1,430 in stock
    United States·Founded 2021·30-day returns·Ships to United States
    Terms not yet verified
    Visit Aurelinne
  6. 6NZ Jewellers1,261 in stock
    New Zealand·Founded 2006·30-day returns·Ships to United States
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  7. 7

    The Perfect Carat

    1,257 in stock
    US
    Terms not yet verified
  10. 10B2C Jewels1,054 in stock
    United States·Founded 2004·30-day returns·Ships to United States
    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 United States
    Terms read on the retailer’s own site, June 15, 2026
    Visit Cape Diamonds
  10. 20Adiamor391 in stock
    United States·Founded 1999·30-day returns·Ships to United States
    Terms not yet verified
    Visit Adiamor

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.

17 of the 25 retailers ship to United States. 8 do not.

Narrow it down by grade

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

D VVS16,682 · 44rD VVS25,906 · 43rD VS12,746 · 39rE VVS22,169 · 40rE VVS11,810 · 43rE VS11,296 · 38rD IF1,279 · 39rF VVS2625 · 37rD VS2510 · 34rE IF406 · 37rE VS2330 · 29rF VS1244 · 35rG VVS2127 · 25rF VS2103 · 26rF VVS1103 · 37rG VS190 · 22rD FL50 · 21rH VVS247 · 23rG VS230 · 17rE FL27 · 19rG VVS122 · 19rF IF18 · 18rH VVS115 · 15rI VVS214 · 13rH VS112 · 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

  • 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 1,498 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 368%, about $756.

Can I see retailers for one exact grade?

Yes. Each of the 25 color 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.