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Round|Lab Grown|IGI

0.40ct K VS1 Round Lab Grown Diamond

VG • K/VS1 • IGI LGF6B98725

Certificate IGI LGF6B98725

Diamond specifications and retailer prices

From $337 USD
As of November 6, 2026
Save $272 USD (45%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $609 USD at 18carati · As of November 4, 2026
View at 18carati

About this 0.4ct lab-grown round diamond

This 0.4ct lab-grown round sits in the sub-half-carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LGF6B98725 or F6B98725. Listed at 3 retailers as of November 4, 2026, with prices from $337 to $609, a $272 spread on the same certified stone. 18carati lists it at $609. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.40
Carat
K
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginLab Grown
Grading LabIGI
CertificateIGI LGF6B98725
Dimensions4.60 × 4.67 × 2.91 mm
L/W Ratio1.02
Top View
4.60 mm4.67 mm0.40 ctK / VS1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI LGF6B98725
Side View
Table 57.5%CrownGirdlePavilionCulet: NoneDepth 62.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $609 USD|Low: $328 USD|High: $609 USD|Avg: $471 USD|+3.6%
18carati
Retailer 2
November 6, 2026
Retailer 2$337 USD
18carati$609 USD

36 data points across 2 retailers

3 retailers$337 USD to $609 USD

B
Cheapest Retailer
-
$337 USD
C
Retailer 2
-
$577 USD
View
Most Expensive
C
18carati
NK-8725KVS1-0040 · Nov 4
$609 USD
€580 EUR
View
2 more retailers have this diamond
Prices start from $337 USDSave up to $272 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B
0.40ct Round
$337 USD