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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, 47 of them, across 24,937 current listings.

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

The market at this size and shape

Active listings

24,937

Retailers carrying

47

Median confirmed price

£189

Grade combinations

25

Certificate mix:IGI 23,480 · GCAL 101 · GIA 1

What it actually costs

Half of these diamonds are listed between £117 and £262 (as of October 29, 2026).

Lower 10% £86Median £189Upper 10% £352

Middle half listed between £117 to £262

Certificated stones with a recently confirmed price only, 2,117 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

352%

Typical difference

£561

Stones compared

1,541

Across 1,541 stones of this size and shape carried by more than one retailer, the dearest listing sits 352% above the cheapest for the identical certificated diamond, a typical gap of £561. 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 Carat1,835 in stock
    United States·Founded 2016·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit Rare Carat
  3. 3Aurelinne1,548 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  7. 7NZ Jewellers1,241 in stock
    New Zealand·Founded 2006·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit NZ Jewellers
  9. 9

    The Perfect Carat

    1,208 in stock
    US
    Terms not yet verified
  10. 10B2C Jewels1,058 in stock
    United States·Founded 2004·30-day returns·Ships to United Kingdom
    Terms read on the retailer’s own site, October 19, 2026
    Visit B2C Jewels
Show 15 more retailers
  1. 11Yorxs951 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  6. 16Cape Diamonds615 in stock
    South Africa·Founded 2005·7-day returns·Ships to United Kingdom
    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 United Kingdom. 11 do not.

Narrow it down by grade

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

D VVS16,921 · 44rD VVS26,013 · 42rD VS12,772 · 39rE VVS22,146 · 40rE VVS11,845 · 42rE VS11,311 · 37rD IF1,250 · 38rF VVS2595 · 33rD VS2493 · 33rE IF403 · 36rE VS2321 · 29rF VS1213 · 32rG VVS2131 · 25rF VS2103 · 26rG VS190 · 22rF VVS188 · 32rH VVS246 · 23rD FL45 · 19rG VS229 · 16rE FL26 · 19rG VVS122 · 19rF IF20 · 20rH VVS115 · 15rH VS114 · 13rI VVS213 · 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 1,541 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 352%, about £561.

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.

Where to Buy 0.5ct Lab Grown Princess Diamonds | Carat Hunter