CaratHunter
Plans

Carat Hunter · Where to buy diamonds

Where to buy a 3ct lab-grown emerald diamond

Every retailer in our index stocking this size and shape, 60 of them, across 122,698 live listings.

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

The market at this size and shape

Active listings

122,698

Retailers carrying

60

Median active price

$1,038

Grade combinations

31

Certificate mix:IGI 112,659 · GIA 7,498 · GCAL 304 · HRD 10

What it actually costs

Lower 10% $514Median $1,038Upper 10% $4,161

Middle half sell between $743 to $1,967

Certificated stones with a live price only, 26,530 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

283%

Typical difference

$2,469

Stones compared

15,961

Across 15,961 stones of this size and shape carried by more than one retailer, the dearest listing sits 283% above the cheapest for the identical certificated diamond, a typical gap of $2,469. 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.

  2. 2Adiamor9,969 in stock
    United States·Founded 1999·30-day returns·Ships to United States
    Visit Adiamor
Show 15 more retailers
  2. 12RockHer4,583 in stock
    United States·Founded 2016·40-day returns·Ships to United States
    Visit RockHer

Stock counts are updated daily. Founded, return window and shipping details are retailer-provided and were last verified June 15, 2026.

16 of the 25 retailers ship to United States. 9 do not.

Narrow it down by grade

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

E VS115,110 · 51rF VS113,224 · 45rD VS112,435 · 46rD VVS210,975 · 54rF VVS210,149 · 47rE VVS28,623 · 49rG VS18,537 · 39rD VVS16,708 · 43rD IF6,244 · 38rG VVS25,481 · 38rE VS24,900 · 38rD FL3,261 · 29rD VS22,723 · 41rE VVS12,345 · 44rH VVS22,272 · 29rF VS22,270 · 37rG VS21,799 · 34rH VS11,678 · 30rE IF964 · 38rF VVS1934 · 40rH VS2903 · 25rE FL340 · 26rG VVS1259 · 29rF IF152 · 22rI VS1103 · 21rH VVS192 · 18rG IF68 · 23rI VS251 · 18rF FL43 · 19rG FL21 · 12rI VVS220 · 7r

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 15,961 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 283%, about $2,469.

Can I see retailers for one exact grade?

Yes. Each of the 31 color 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.