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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, 60 of them, across 67,260 live listings.

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

The market at this size and shape

Active listings

67,260

Retailers carrying

60

Median active price

£272

Grade combinations

30

Certificate mix:IGI 63,939 · GIA 1,160 · GCAL 451 · HRD 22

What it actually costs

Lower 10% £121Median £272Upper 10% £790

Middle half sell between £212 to £403

Certificated stones with a live price only, 14,711 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

162%

Typical difference

£424

Stones compared

8,873

Across 8,873 stones of this size and shape carried by more than one retailer, the dearest listing sits 162% above the cheapest for the identical certificated diamond, a typical gap of £424. 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.

7 of the 25 retailers ship to United Kingdom. 18 do not.

Narrow it down by grade

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

D VVS215,103 · 54rD VVS19,941 · 45rE VVS27,761 · 45rE VS16,738 · 47rD VS16,493 · 44rE VVS16,262 · 44rD IF2,842 · 39rF VVS21,825 · 40rF VS11,579 · 40rE IF1,443 · 36rD VS21,440 · 35rE VS21,320 · 37rG VVS2749 · 34rG VS1732 · 36rF VVS1587 · 38rD FL564 · 25rF VS2523 · 33rH VS1224 · 24rG VVS1206 · 26rF IF167 · 24rH VVS2164 · 27rG VS2156 · 25rH VS2118 · 27rI VS195 · 19rH VVS183 · 10rG IF49 · 20rI VVS226 · 10rI VVS118 · 5rI IF13 · 5rE FL10 · 10r

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 8,873 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 162%, about £424.

Can I see retailers for one exact grade?

Yes. Each of the 30 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.

Where to Buy 1ct Lab Grown Princess Diamonds | Carat Hunter