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Carat Hunter · Where to buy diamonds

Where to buy a 1.25ct lab-grown oval diamond

Every retailer in our index stocking this size and shape, 61 of them, across 63,556 current listings.

Updated October 30, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

63,556

Retailers carrying

61

Median confirmed price

£330

Grade combinations

26

Certificate mix:IGI 58,465 · GIA 1,775 · GCAL 1,642 · HRD 10

What it actually costs

Half of these diamonds are listed between £194 and £614 (as of October 30, 2026).

Lower 10% £164Median £330Upper 10% £991

Middle half listed between £194 to £614

Certificated stones with a recently confirmed price only, 5,573 of them. Each contributes its cheapest confirmed price.

The same stone, priced differently

Typical spread

405%

Typical difference

£850

Stones compared

3,779

Across 3,779 stones of this size and shape carried by more than one retailer, the dearest listing sits 405% above the cheapest for the identical certificated diamond, a typical gap of £850. 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.

  1. 1Rare Carat4,395 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
  3. 3NZ Jewellers3,481 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
  4. 4Aurelinne3,392 in stock
    United States·Founded 2021·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Aurelinne
  6. 6

    The Perfect Carat

    2,876 in stock
    US
    Terms not yet verified
  9. 9B2C Jewels2,418 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
Show 15 more retailers
  1. 11Adiamor2,370 in stock
    United States·Founded 1999·30-day returns
    Terms not yet verified
    Visit Adiamor
  2. 12Moon Ocean2,325 in stock
    United Kingdom·Founded 2022·30-day returns·Ships to United Kingdom
    Terms not yet verified
    Visit Moon Ocean
  8. 18Cape Diamonds1,578 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 are updated daily. 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 VVS212,485 · 57rD VVS19,404 · 53rD VS18,882 · 54rD IF7,800 · 52rD FL4,990 · 38rE VVS24,320 · 53rE VS13,269 · 52rE VVS12,627 · 50rE IF1,382 · 45rD VS21,202 · 46rF VVS21,200 · 52rF VS11,186 · 50rG VS11,093 · 39rE VS2944 · 45rG VVS2679 · 42rE FL472 · 31rF VS2382 · 38rF IF274 · 36rF VVS1262 · 40rH VS1206 · 28rG VS2141 · 26rH VVS2136 · 27rH VS2112 · 27rG VVS147 · 21rH VVS124 · 7rF FL21 · 20r

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

  • Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
  • 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 3,779 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 405%, about £850.

Can I see retailers for one exact grade?

Yes. Each of the 26 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.