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Carat Hunter · Where to buy diamonds

Where to buy a 0.5ct lab-grown emerald diamond

Every retailer in our index stocking this size and shape, 51 of them, across 33,329 live listings.

Updated September 14, 2026 · Independent. Zero affiliate revenue.

The market at this size and shape

Active listings

33,329

Retailers carrying

51

Median active price

£222

Grade combinations

32

Certificate mix:IGI 27,348 · GIA 1,530 · GCAL 118

What it actually costs

Lower 10% £102Median £222Upper 10% £709

Middle half sell between £144 to £433

Certificated stones with a live price only, 7,726 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

158%

Typical difference

£278

Stones compared

3,926

Across 3,926 stones of this size and shape carried by more than one retailer, the dearest listing sits 158% above the cheapest for the identical certificated diamond, a typical gap of £278. 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 September 2, 2026.

8 of the 25 retailers ship to United Kingdom. 17 do not.

Narrow it down by grade

Each combination below has its own page with the retailers that stock exactly that grade.

D VVS27,904 · 46rD VVS16,063 · 37rD VS13,680 · 36rE VVS22,090 · 38rD IF2,046 · 35rE VS11,967 · 34rE VVS11,285 · 32rF VS11,012 · 33rD VS21,012 · 28rG VS1917 · 24rE VS2735 · 34rF VVS2650 · 31rE IF448 · 33rG VVS2438 · 26rH VS1418 · 22rF VS2401 · 22rG VS2337 · 21rF VVS1282 · 31rG VVS1243 · 17rH VVS2201 · 23rH VVS1190 · 21rI VS1189 · 16rH VS2161 · 19rD FL152 · 21rI VS2119 · 10rI VVS286 · 15rG IF76 · 25rH IF71 · 9rF IF53 · 14rE FL50 · 18rI VVS133 · 12rI IF20 · 8r

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.
  • 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 3,926 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 158%, about £278.

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.

Where to Buy 0.5ct Lab Grown Emerald Diamonds | Carat Hunter