3ct G VS2 Round Lab-Grown Diamond Price
The median is $1,418. Half of these diamonds are listed between $843 and $3,997 at 21 retailers (measured on October 30, 2026), and the same stone is often priced very differently at each.
3ct G VS2 Round Lab-Grown Diamond Price has a median price of $1,418, with the middle half listed between $843 and $3,997, across 318 certificated stones from 21 retailers on Carat Hunter (measured on October 30, 2026).
What it actually costs
Middle half listed between $843 to $3,997
The same stone, priced differently
Across 193 stones of this specification carried by more than one retailer, the dearest listing sits 352% above the cheapest for the identical diamond, a typical gap of $3,281. This is not a difference in the stone. It is the same certificated diamond, and the gap is what you avoid by comparing before you buy.
What changes the price
Median price for the same specification with one attribute changed, so you can see what flexing each one is worth.
| Change | Median | Difference |
|---|---|---|
| Carat 2ct | $600 | -58% |
| Carat 5ct | $1,881 | +33% |
| Clarity SI1 | $1,279 | -10% |
| Clarity VS1 | $1,380 | -3% |
| Colour H | $834 | -41% |
| Colour F | $1,407 | -1% |
| Origin natural | $83,627 | +5798% |
Reading this specification
VS2 is the usual value sweet spot. Inclusions need 10x magnification to find and the stone is eye-clean in almost every case, so paying up for a VVS grade buys wording on the report rather than a visible change.
G is near-colourless and faces up white in most shapes and settings, which is why this part of the scale is the most common value recommendation.
A round brilliant returns more light than any other cut and hides both warmth and small inclusions better than a step cut, so grades that would be marginal elsewhere are usually safe in this shape.
The 352% spread on this specification is unusually wide, which means the retailer you choose matters more than any single grade on the report.
Dropping to 2ct saves about 58%, and the difference in visible diameter is small enough that most people cannot pick it without the two stones side by side.
Stones at this specification now
Current examples carried by more than one retailer, so the price comparison is real.
- 3.37ct G VS2from $669 across 9 retailersAs of October 29, 2026
- 3.05ct G VS2from $687 across 16 retailersAs of October 29, 2026
- 3.1ct G VS2from $650 across 21 retailersAs of October 29, 2026
- 3.06ct G VS2from $709 across 18 retailersAs of October 29, 2026
- 3.08ct G VS2from $646 across 20 retailersAs of October 29, 2026
- 3.02ct G VS2from $684 across 21 retailersAs of October 29, 2026
FAQ
What is a fair price for a 3ct G VS2 Round Lab-Grown diamond?
The median is $1,418 and the middle half of stones are listed between $843 and $3,997 (measured on October 30, 2026). Those figures cover 318 certificated diamonds listed by 21 retailers, so anything materially above the upper figure is worth questioning.
How much do retailers differ on the same diamond?
Across 193 stones of this specification carried by more than one retailer, the typical gap between the cheapest and dearest listing of the identical diamond is 352%, or about $3,281.
What is the cheapest way to change this specification?
Moving to 2ct lowers the median by 58% to $600. Moving to SI1 lowers the median by 10% to $1,279. Moving to VS1 lowers the median by 3% to $1,380.
How many retailers carry 3ct G VS2 Round diamonds?
Carat Hunter tracks 21 retailers actively offering diamonds matching this specification, across 318 distinct certified stones.
Is Lab-Grown pricing typical for 3ct Round diamonds?
Lab-grown diamond prices have declined significantly over recent years. Current Carat Hunter data shows lab-grown pricing running materially below equivalent natural stones.
How this is measured
Measured on October 30, 2026 from 318 certificated diamonds between 3 and 3.49 carat, carrying 2127 current listings across 21 retailers. Each stone with a recently confirmed price contributes the cheapest price we last saw for it, so the distribution reflects what a buyer comparing retailers would actually pay. These figures summarize many stones, so they carry the day they were measured rather than the date of any one listing.
Certificated stones with a current listed price only, and every price figure uses only prices we confirmed recently. Uncertificated inventory is excluded because its grades cannot be verified against a laboratory report.
Updated October 30, 2026. Aggregate data across 21 retailers.