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Carat Hunter · Where to buy diamonds

Where to buy a 1ct lab-grown princess diamond

Every retailer in our index stocking this size and shape, 62 of them, across 115,590 current listings.

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

The market at this size and shape

Active listings

115,590

Retailers carrying

62

Median confirmed price

£190

Grade combinations

29

Certificate mix:IGI 108,562 · GIA 1,268 · GCAL 768 · HRD 22

What it actually costs

Half of these diamonds are listed between £145 and £323 (as of November 5, 2026).

Lower 10% £131Median £190Upper 10% £608

Middle half listed between £145 to £323

Certificated stones with a recently confirmed price only, 10,251 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Cheapest to dearest, median

318%

Cheapest to dearest, median in price

£548

Stones compared

8,493

Across 8,493 stones of this size and shape carried by more than one retailer, the dearest listing sits 318% above the cheapest for the identical certificated diamond, a typical gap of £548. 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.

  3. 3

    The Perfect Carat

    6,425 in stock
    US
    Terms not yet verified
  4. 4NZ Jewellers6,033 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
  5. 5Rare Carat5,990 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
  7. 7Aurelinne5,633 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  9. 9Adiamor4,483 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
Show 15 more retailers
  2. 12B2C Jewels4,167 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
  5. 15Moon Ocean2,970 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean
  7. 17Yorxs2,674 in stock
    Germany·Founded 2011·100-day returns
    Terms not yet verified
    Visit Yorxs
  8. 18Cape Diamonds2,533 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 reflect current listings. 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.

16 of the 25 retailers ship to United Kingdom. 9 do not.

Narrow it down by grade

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

D VVS222,694 · 55rE VVS215,247 · 54rE VS114,862 · 55rD VVS113,028 · 56rD VS112,448 · 53rE VVS19,412 · 53rF VVS24,419 · 47rD IF4,354 · 50rF VS13,647 · 44rE VS23,415 · 42rD VS22,458 · 44rE IF2,249 · 44rG VS11,295 · 42rG VVS21,176 · 41rF VS21,127 · 43rF VVS11,047 · 43rD FL924 · 40rG VS2350 · 38rH VS1288 · 30rG VVS1279 · 37rF IF269 · 31rH VVS2252 · 33rH VS2133 · 34rG IF80 · 31rI VS164 · 25rH VVS128 · 16rE FL16 · 16rI VVS216 · 15rI VVS110 · 10r

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 8,493 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 318%, about £548.

Can I see retailers for one exact grade?

Yes. Each of the 29 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.