Carat Hunter · Where to buy diamonds
Where to buy a 0.5ct natural emerald diamond
Every retailer in our index stocking this size and shape, 68 of them, across 115,832 live listings.
Updated September 14, 2026 · Independent. Zero affiliate revenue.
The market at this size and shape
Active listings
115,832
Retailers carrying
68
Median active price
£549
Grade combinations
36
What it actually costs
Middle half sell between £446 to £643
Certificated stones with a live price only, 36,232 of them. Each contributes its best available price.
The same stone, priced differently
Typical spread
35%
Typical difference
£176
Stones compared
17,349
Across 17,349 stones of this size and shape carried by more than one retailer, the dearest listing sits 35% above the cheapest for the identical certificated diamond, a typical gap of £176. 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 Kingdom·Founded 2005·30-day returns·Ships to United KingdomVisit 77 Diamonds
- United States·Founded 2016Visit Rare Carat
- Germany·Founded 2011·100-day returnsVisit Yorxs
- Singapore·Founded 2013·14-day returnsVisit Michael Trio
- United States·Founded 2002·30-day returnsVisit Brilliance
- United Kingdom·30-day returns·Ships to United KingdomVisit Diamond Quarter
- 7
GemTrove
3,942 in stockAU - United States·Founded 2004·30-day returnsVisit B2C Jewels
- New Zealand·Founded 2006·30-day returnsVisit NZ Jewellers
- Australia·Founded 1996·30-day returnsVisit Jogia Diamonds
Show 15 more retailers
- United States·30-day returnsVisit Calavera New York
- United States·Founded 1995·10-day returnsVisit Diamonds Direct
- United Kingdom·Founded 2013·90-day returns·Ships to United KingdomVisit Taylor and Hart
- Malaysia·Founded 2015Visit ZCOVA
- South Africa·Founded 2005·7-day returnsVisit Cape Diamonds
- United States·Founded 2010·30-day returnsVisit Allurez
- United States·Founded 2021·30-day returnsVisit Aurelinne
- Singapore·Founded 2015·30-day returnsVisit Fonder Diamond
- United States·Founded 1999·30-day returnsVisit Ritani
- United States·Founded 2005·30-day returns·Ships to United KingdomVisit Brilliant Earth
- United Kingdom·Founded 2014·30-day returns·Ships to United KingdomVisit Flawless Fine Jewelry
- United StatesVisit William & Sons Jewelers
- United States·Founded 2016·40-day returnsVisit RockHer
- United States·21-day returns·Ships to United KingdomVisit Carbon Sparkle
- United States·Founded 1999·30-day returnsVisit Adiamor
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.
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
- Emerald: a rectangular step cut with a hall-of-mirrors look that requires high clarity.
- 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 17,349 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 35%, about £176.
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.