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Round|Lab Grown|IGI

0.40ct J VVS2 Round Lab Grown Diamond

VG • J/VVS2 • IGI LGF6E19911

Certificate IGI LGF6E19911

Diamond specifications and retailer prices

From £276 GBP
As of October 30, 2026
Save £212 GBP (43%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £489 GBP at 18carati · As of October 28, 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 J colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LGF6E19911 or F6E19911. Listed at 2 retailers as of October 28, 2026, with prices from £276 to £489, a £212 spread on the same certified stone. 18carati lists it at £489. 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
J
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGF6E19911
Dimensions4.62 × 4.65 × 2.96 mm
L/W Ratio1.01
Top View
4.62 mm4.65 mm0.40 ctJ / VVS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LGF6E19911
Side View
Table 54.0%CrownGirdlePavilionCulet: NoneDepth 63.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £489 GBP|Low: £264 GBP|High: £489 GBP|Avg: £378 GBP|+3.3%
18carati
Retailer 2
October 30, 2026
Retailer 2£276 GBP
18carati£489 GBP

30 data points across 2 retailers

2 retailers£276 GBP to £489 GBP

B
Cheapest Retailer
-
£276 GBP
Most Expensive
C
18carati
NK-9911JVVS2-0040 · Oct 28
£489 GBP
€620 EUR
View
1 more retailer has this diamond
Prices start from £276 GBPSave up to £212 GBP

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
£276 GBP