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Carat Hunter · Where to buy diamonds

Where to buy a 1.5ct natural cushion diamond

Every retailer in our index stocking this size and shape, 66 of them, across 33,467 live listings.

Updated September 18, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

33,467

Retailers carrying

66

Median active price

£3,942

Grade combinations

31

Certificate mix:GIA 29,369 · IGI 439 · HRD 273 · AGS 2

What it actually costs

Lower 10% £2,053Median £3,942Upper 10% £7,490

Middle half sell between £2,756 to £5,621

Certificated stones with a live price only, 10,655 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

43%

Typical difference

£1,497

Stones compared

7,169

Across 7,169 stones of this size and shape carried by more than one retailer, the dearest listing sits 43% above the cheapest for the identical certificated diamond, a typical gap of £1,497. 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
  12. 22

    GemTrove

    682 in stock
    AU

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified June 15, 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.

H VS22,803 · 55rI VS12,766 · 52rI VS22,612 · 51rG VS22,521 · 55rH VS12,387 · 51rG VS11,930 · 55rF VS21,754 · 52rF VS11,530 · 53rH VVS21,505 · 53rI VVS21,488 · 45rE VS21,327 · 50rE VS11,302 · 54rD VS21,103 · 50rG VVS21,089 · 50rD VS11,049 · 48rI VVS1997 · 45rH VVS1856 · 52rE VVS2787 · 49rG VVS1785 · 56rF VVS2597 · 48rE VVS1538 · 48rD VVS2478 · 47rF VVS1470 · 48rD VVS1174 · 40rI IF170 · 36rH IF150 · 37rF IF88 · 30rD IF64 · 23rE IF49 · 21rG IF47 · 23rD FL36 · 23r

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

  • Cushion: a softened-corner square or rectangle with a vintage feel.
  • Natural: mined diamonds with the certification, provenance and resale profile traditional buyers expect.

Frequently asked

How much do retailers differ on the same diamond?

Across 7,169 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 43%, about £1,497.

Can I see retailers for one exact grade?

Yes. Each of the 31 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.