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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct natural round diamond

Every retailer in our index stocking this size and shape, 74 of them, across 86,928 live listings.

Updated September 19, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

86,928

Retailers carrying

74

Median active price

£3,213

Grade combinations

36

Certificate mix:GIA 69,919 · IGI 9,395 · HRD 2,481 · AGS 4

What it actually costs

Lower 10% £1,656Median £3,213Upper 10% £6,978

Middle half sell between £2,229 to £4,811

Certificated stones with a live price only, 26,677 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

40%

Typical difference

£1,024

Stones compared

15,957

Across 15,957 stones of this size and shape carried by more than one retailer, the dearest listing sits 40% above the cheapest for the identical certificated diamond, a typical gap of £1,024. 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 June 15, 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.

H VS26,136 · 59rI VS25,623 · 59rI VS15,369 · 58rG VS15,304 · 65rH VS15,269 · 63rG VS24,979 · 59rG VVS23,134 · 58rI VVS23,109 · 55rF VS13,029 · 66rH VVS23,013 · 59rH VVS12,994 · 56rF VVS12,809 · 60rE VVS12,806 · 63rD VVS12,782 · 62rG VVS12,758 · 57rF VS22,671 · 60rF VVS22,630 · 63rI VVS12,526 · 53rD VS12,449 · 63rE VS12,355 · 59rD VS22,114 · 59rE VVS22,103 · 58rE VS21,991 · 58rD VVS21,962 · 55rD IF1,310 · 58rF IF976 · 51rG IF969 · 55rH IF937 · 52rI IF918 · 49rE IF864 · 54rD FL795 · 44rF FL102 · 35rH FL54 · 9rE FL41 · 14rI FL24 · 8rG FL23 · 9r

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.
  • 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 15,957 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 40%, about £1,024.

Can I see retailers for one exact grade?

Yes. Each of the 36 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.