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Carat Hunter · Where to buy diamonds

Where to buy a 3ct lab-grown oval diamond

Every retailer in our index stocking this size and shape, 62 of them, across 202,803 live listings.

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

The market at this size and shape

Active listings

202,803

Retailers carrying

62

Median active price

$1,053

Grade combinations

31

Certificate mix:IGI 176,203 · GIA 17,771 · GCAL 4,281 · HRD 62

What it actually costs

Lower 10% $696Median $1,053Upper 10% $3,446

Middle half sell between $848 to $1,943

Certificated stones with a live price only, 56,622 of them. Each contributes its best available price.

The same stone, priced differently

Typical spread

194%

Typical difference

$1,834

Stones compared

28,908

Across 28,908 stones of this size and shape carried by more than one retailer, the dearest listing sits 194% above the cheapest for the identical certificated diamond, a typical gap of $1,834. 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. 1Adiamor20,262 in stock
    United States·Founded 1999·30-day returns·Ships to United States
    Visit Adiamor
  9. 9RockHer8,718 in stock
    United States·Founded 2016·40-day returns·Ships to United States
    Visit RockHer
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.

15 of the 25 retailers ship to United States. 10 do not.

Narrow it down by grade

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

E VVS225,738 · 50rE VS122,356 · 52rD VS121,459 · 49rD VVS218,473 · 55rF VVS218,338 · 48rD VVS114,295 · 48rF VS112,162 · 47rG VS19,893 · 39rE VS29,585 · 43rD FL9,158 · 31rD IF8,931 · 42rG VVS28,512 · 38rD VS25,362 · 39rE VVS14,407 · 46rF VS22,968 · 36rH VS12,504 · 30rG VS22,245 · 34rH VVS21,764 · 21rF VVS11,684 · 41rE IF968 · 34rH VS2571 · 25rG VVS1546 · 34rE FL300 · 26rF IF221 · 29rH VVS1106 · 17rG IF98 · 22rI VS185 · 25rI VS226 · 13rI VVS221 · 10rH IF14 · 14rI VVS111 · 11r

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 28,908 identical stones carried by more than one retailer, the typical gap between the cheapest and dearest listing is 194%, about $1,834.

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.

Where to Buy 3ct Lab Grown Oval Diamonds | Carat Hunter