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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct lab-grown round diamond

Every retailer in our index stocking this size and shape, 72 of them, across 703,302 live listings.

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

The market at this size and shape

Active listings

703,302

Retailers carrying

72

Median active price

£342

Grade combinations

33

Certificate mix:IGI 679,570 · GIA 4,867 · GCAL 2,291 · HRD 42

What it actually costs

Lower 10% £150Median £342Upper 10% £962

Middle half sell between £268 to £570

Certificated stones with a live price only, 137,357 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

203%

Typical difference

£628

Stones compared

87,385

Across 87,385 stones of this size and shape carried by more than one retailer, the dearest listing sits 203% above the cheapest for the identical certificated diamond, a typical gap of £628. 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.

6 of the 25 retailers ship to United Kingdom. 19 do not.

Narrow it down by grade

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

D VVS2136,403 · 63rE VVS2108,137 · 56rD VS182,099 · 54rE VS177,930 · 53rD VVS159,190 · 57rF VVS244,786 · 56rE VVS130,230 · 51rF VS129,374 · 55rE VS224,466 · 49rD VS222,344 · 48rF VVS112,671 · 52rG VVS212,054 · 50rG VS111,678 · 49rD IF11,548 · 50rF VS28,743 · 46rD FL8,275 · 33rG VVS14,197 · 41rG VS23,478 · 42rE IF2,748 · 43rI VS12,667 · 28rH VVS22,105 · 36rH VS11,971 · 33rI VS21,632 · 27rH VS21,022 · 33rI VVS2901 · 25rE FL775 · 27rF IF682 · 34rH VVS1588 · 36rG IF321 · 28rF FL152 · 21rI VVS162 · 18rI IF35 · 8rH IF34 · 8r

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

  • Round: the most common cut, with the highest light return per carat.
  • 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 87,385 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 203%, about £628.

Can I see retailers for one exact grade?

Yes. Each of the 33 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 1.5ct Lab Grown Round Diamonds | Carat Hunter