Carat Hunter · Where to buy diamonds
Where to buy a 1ct lab-grown oval diamond
Every retailer in our index stocking this size and shape, 66 of them, across 263,687 live listings.
Updated September 14, 2026 · Independent. Zero affiliate revenue.
The market at this size and shape
Active listings
263,687
Retailers carrying
66
Median active price
£261
Grade combinations
32
What it actually costs
Middle half sell between £207 to £374
Certificated stones with a live price only, 58,074 of them. Each contributes its best available price.
The same stone, priced differently
Typical spread
149%
Typical difference
£362
Stones compared
38,030
Across 38,030 stones of this size and shape carried by more than one retailer, the dearest listing sits 149% above the cheapest for the identical certificated diamond, a typical gap of £362. 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.
- United States·Founded 1999·30-day returnsVisit Adiamor
- United States·Founded 2018·30-day returnsVisit Loose Grown Diamond
- United States·Founded 2004·30-day returnsVisit B2C Jewels
- United Kingdom·Founded 2013·90-day returnsVisit Taylor and Hart
- United Kingdom·Founded 2005·30-day returnsVisit 77 Diamonds
- United States·Founded 2019·30-day returnsVisit Friendly Diamonds
- South Africa·Founded 2005·7-day returnsVisit Cape Diamonds
- Germany·Founded 2011·100-day returnsVisit Yorxs
- United Kingdom·30-day returnsVisit Diamond Quarter
- Australia·Founded 2019·30-day returnsVisit Novita Diamonds
Show 15 more retailers
- United States·Founded 2016Visit Rare Carat
- United States·Founded 2005·30-day returnsVisit Brilliant Earth
- United Kingdom·Founded 2022·30-day returnsVisit Moon Ocean
- United StatesVisit William & Sons Jewelers
- United States·Founded 2013·30-day returnsVisit Reve Diamonds
- AustraliaVisit Aida Diamonds
- Canada·Founded 2002·14-day returnsVisit Diamond Exchange Canada
- United States·Founded 2013·30-day returnsVisit With Clarity
- United States·Founded 2014·60-day returnsVisit Do Amore Diamonds
- United States·Founded 2017·30-day returnsVisit Frank Darling
- United States·Founded 2021·30-day returnsVisit Grown Brilliance
- Singapore·Founded 2013·14-day returnsVisit Michael Trio
- Hong KongVisit Ting Diamond
- United States·Founded 2005·15-day returnsVisit The Diamond Guys
- Australia·3-day returnsVisit Wholesale Diamonds Direct
Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified September 2, 2026.
Narrow it down by grade
Each combination below has its own page with the retailers that stock exactly that grade.
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
- Oval: an elongated brilliant cut that looks larger face-up than its carat weight.
- 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 38,030 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 149%, about £362.
Can I see retailers for one exact grade?
Yes. Each of the 32 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.